Spyware for Firefox Coming This Year? 630
EvilCowzGoMoo writes "One of the main reasons for the Firefox browser's successful seizure of market share from Microsoft's Internet Explorer is the desire to escape the inundation of PC-slowing spyware. However, spyware experts indicate that with its increased popularity, Firefox itself will become a target for spyware creators." From the article: "Basically, if you use Firefox today, you're not susceptible to any spyware, other than what you download when you're on Kazaa...The spyware writers target mostly Explorer users because that's the most fertile feeding ground for piranha-like (spyware) attacks. They'll watch as Firefox becomes mainstream, they'll see opportunity there and start targeting them."
Malicious XPI's exist already (Score:5, Interesting)
Re:Malicious XPI's exist already (Score:4, Insightful)
"Bring it on"
How's Firefox supposed to get even more resistant to exploits if hackers aren't sitting there trying the exploit the heck out of it?
Trial by fire. There's a reason it started out as Phoenix.
Typographical Errors in High Places (Score:5, Funny)
Typographical error -- should read "immoral words"
-kgj
Totally OT... (Score:5, Funny)
The service was supposed to be decrying sexual immorality, but the entire 20 minute sermon, she unknowingly used the term
"sexual immortality."
Every time. And everyone laughed. Every time.
A lot of us were suprised they didn't cut her short. Just thought I'd share
Re:Bring it On (Score:4, Insightful)
It is not our culture, but rather our FOREIGN POLICY.
Our government propping up leaders and overthrowing elected governments and things like that, ALL OVER THE WORLD, is what has caused Terrorism to flourish.
Ask ourselves these simple questions: Why Did Osama Bin Laden switch sides? What caused him to stop working FOR the United States and start working Against it? Where did Iraq get all the weapons that they are now shooting at our sons and daughters? Why are people starving in Cuba but Castro is doing fine? Why did we really oust the Taliban from Afghanistan? Do people in other cultures really *want* democracy forced on them?
Generally attacks come to places that have American interests or places that help American interests. But also, there is one thing people seem to overlook - How come no one hates Canada (besides Canadians...)? How come no one burns Swiss flags in protest?
The United States government has a long history of meddling and pushing. Both Republican and Democrat. We have pushed with Military Might. We have meddled with covert actions. We have coerced with financial influence. That is why we are targets for Terrorism.
They don't "hate our freedom and liberty" - they hate our government. And they see the American people who continue to support the governments policies, and who pay tax dollars to fund those policies - as enemy combattants.
The Levis and MTV are just icing on the cake. Just one more reason for them to hate us.
People in the USA are just as guilty of religious fundamentalism, and just as guilty of killing in the name of religion. More people have been killed in the name of Christianity than any other single cause. People resent that over time...
Re:Malicious XPI's exist already (Score:4, Informative)
If you go to about:mozilla in any of the Firefox browsers (Netscape too - heck, even IE since it was based on netscape, but it just shows a blue screen), it will pull up a page from "The Book of Mozilla", most of them have references to a great bird rising from ashes, or something similar to that effect. If they were in Netscape then they clearly predate Firefox, however, I believe the names Phoenix and Firebird were probably based around them. Wikipedia's entry on The Book of Mozilla [wikipedia.org], no doubt it explains it on there, I'm too lazy\busy to read through it.
Re:Malicious XPI's exist already (Score:4, Informative)
Internet Exploder was not based upon Netscape, but it was based upon the Mosaic Web Browser.
Here's what it says in the "About Internet Explorer" dialog
They got the term for the Open source project Mozilla from Netscape's Original code name which is a contraction of Mosaic + Godzilla (i.e. Mosaic killer [webopedia.com]), and was coined by Jamie Zawinski (jwz) when Netscape's primary competition was Spyglass Mosaic.">
In other words, Mozilla/Netscape and Mosaic/Internet Explorer are not based on one another, they have nothing to do with one another except they're competing web browsers.
Re:Malicious XPI's exist already (Score:3, Interesting)
Re:Malicious XPI's exist already (Score:3, Informative)
Re:Malicious XPI's exist already (Score:4, Insightful)
Why can't a browser simply be a browser anymore?
All it needs to do is render html, optionally show pictures, and supply widgets for forms.
That is it.
Re:Malicious XPI's exist already (Score:5, Funny)
All it needs to do is render html, optionally show pictures, and supply widgets for forms.
well... there is lynx (and links, and dillo). the problem there is that, while you may not get hacked, people will think you're hacking them! [slashdot.org]
Re:Malicious XPI's exist already (Score:3, Informative)
http://www.dillo.org/ [dillo.org]
It has all the features you need.
I need other features, and I use Firefox + extensions.
Re:Malicious XPI's exist already (Score:3, Interesting)
Personally, I know if I'm making a program, even if I didn't intend on having as many op
Re:Malicious XPI's exist already (Score:4, Insightful)
I find it's the cumulative effects of lots of XPI extensions that really make browsing with FireFox enjoyable.
I use adblock, the Sage RSS reader, Spellbound spell checker, GMail notifier and FoxyTunes.
If all it did was what you suggest, may as well go back to Mosaic. I really enjoy the customisations I can do to get the browser I want.
I also develop web sites for a living. The reason we have ActiveX, Java, Flash, Javascript, DHTML it because it needs to do more than render HTML.
The fact is that for some things successful and useful website use this stuff, and need to use this stuff to give a good user experience. They are, of course, also horribly abused no doubt about it. Trade off for a more useful web. If you don't think it's worth it, you can run FireFox without any plugins, or a text only browser.
I'll be off enjoying the web, and being careful what I install.
Re:Malicious XPI's exist already (Score:3, Interesting)
So, erm, there. XPI doesn't mean you cannot put shit in there, the same way that
A zip file can contain any shit you want.
If they are awarding prizes for gratuitous uses of explitives on
Re:Malicious XPI's exist already (Score:3, Interesting)
Re:Malicious XPI's exist already (Score:4, Insightful)
Re:Malicious XPI's exist already (Score:3, Interesting)
The people that get infected by crap this way when they use IE are not going to be any safer when they switch to Firefox because it is just as vulnerable to this type of "exploit". User education is the key to reducing t
Re:Malicious XPI's exist already (Score:3, Insightful)
Re:Malicious XPI's exist already (Score:3, Interesting)
There sure is. I just posted to freebsd-chat:
Date: Tue, 8 Feb 2005 18:15:32 +0000
Subject: Spyware on FreeBSD!?
Cc: FreeBSD chat
Bad news, looks like my machine has been infected with some Spyware.
I noticed that on surfing to: http://news.bbc.co.uk/ or anything under that domain, I was getting some outgoing activity and Firefox was after a URL (as shown by the status bar) somewhere under the domain:
http://bbcnewscouk.112.2o7.net/
A quick Google on 2o7.net confirmed my worst fears: spyware!
Re:Malicious XPI's exist already (Score:5, Informative)
1 [freebsd.org] 2 [freebsd.org]
Re:Malicious XPI's exist already (Score:3, Informative)
Re:Malicious XPI's exist already (Score:3, Informative)
> You're an idiot
It grieves me to say this: but Mr.AC you're right!
I'm also a buffoon and a fool to boot.
Please feel welcome to mod my original post as: -5, Bonkers
Short answer: I failed to parse the BBC's privacy statement [bbc.co.uk] or do a whois on 2o7.net.
As other have mentioned, the BBC (or rather a 3rd party they've contracted) are tracking users and obviously a few other things aswell.
Any future reports from me of spyware on *nix are to be viewed with scepticism and should be modded accor
IE and Firefox have different problems (Score:5, Insightful)
For Firefox, though, it'll take social engineering. The place to look for the spyware threats is in the brand new extension you WANT to install. Most Firefox users have at least one extension, and many have a dozen. How do you know what each of those is doing behind your back? Most people don't bother to scan the code, and while some may do so and report problems publicly, will you find out about them? A firewall won't even help you in this situation since you've probably given Firefox free access to port 80 (plus 443, etc).
Mozilla should probably create some sort of permission system for extensions. Can it connect to a remote server? Can it write to disk?
Re:IE and Firefox have different problems (Score:5, Informative)
Supposedly.
If nothing else, at least it has a rating and feedback system, so you'll have a heads up from others.
Re:IE and Firefox have different problems (Score:4, Insightful)
The loophole here is that people will only see those reviews once, just before they install the extension. A year goes by and everybody hits the software update button which just goes ahead and installs the new stuff. Instant malware.
I'm not saying this will happen, but it could. Hopefully the developers figure out a defence for this before it does, such as popping up tabs with the lastest reviews of the extensions Firefox wants to upgrade.
Re:IE and Firefox have different problems (Score:3, Informative)
Isn't it already? In order to install an extension from somewhere other than mozdev, I have to add the site to a list of approved extensions sources.
Re:IE and Firefox have different problems (Score:5, Insightful)
For you and I, I'd say that exploits are the issue...but in my experience, most average users don't get a malware infestation via browser exploits (mainly because when you and I see the words Gator or Newnet, we say hell no). They simply click "yes" when asked if they'd like to install a piece of software. I don't know if the mentality is "yeah I want more functionality" or "yeah yeah, just show me the damn webpage!". One way or the other (antecdotally), most of the users whom I deal with tend to install the malware themselves. FWIW, these users tend to be on the low end of the learning curve.
It would be interesting to see a permission based system for this...maybe even registering approved plugins with a crypto signature/hash.
Re:IE and Firefox have different problems (Score:3, Insightful)
You mean like the way Microsoft handles signed vs. unsigned ActiveX?
Re:IE and Firefox have different problems (Score:3, Insightful)
There is a bug in the original IE authenticode interface (fixed in XP SP2) that allows a
Re:IE and Firefox have different problems (Score:3, Interesting)
Re:IE and Firefox have different problems (Score:5, Informative)
Re:IE and Firefox have different problems (Score:3, Insightful)
I don't think so, I think even a relatively small, but noticable and increasing, percentage of web share would be sufficent for spyware manufacturers to attack firefox.
For one, they want to ensure their product (and I use the term loosely) is on as many computers as possible. For two if they could successfully make firefox a vehicle for their crap for the average user, then one of the major incentives for switching
Re:IE and Firefox have different problems (Score:4, Insightful)
Re:IE and Firefox have different problems (Score:4, Insightful)
Isn't that just reinventing Java?
Yeah, those "porn" plugins are trouble (Score:3, Funny)
Seemed like a great idea, right?
That's when I found out it was infected with that nasty "Piss off your wife" virus. The one where you're denied "marital benefits" for a while when she finds out what happened to all that hard drive space.
NO way!! (Score:2, Funny)
Re:NO way!! (Score:5, Funny)
I use GNU/Linux, so the only spyware I install on my system is GNU/Spyware!
Re:NO way!! (Score:3, Funny)
Duh. (Score:2, Insightful)
Re:Duh. (Score:2, Informative)
FreeBSD, Linux, and MacOS X would still be a less vulnerable target. Worst cast scenario, delete ~/.mozilla/firefox (~/Library/Application Data/Firefox), start over.
The reason Windows is such a mess is that there's no 'easy' way to clean up the mess. You could wipe out the user's entire home directory on Windows and still be screwed. On a *nix based system, wiping out the home directory would usually fix you right up.
Re:Duh. (Score:3, Insightful)
Re:Duh. (Score:3, Insightful)
Second, Linux would most definitely have exploits galore. We've already seen outright kernel exploits and holes in the 2.6 series of kernels. I don't know about you, but I don't even remember there being a Windows security flaw that used the kernel. Go to LinuxSecurity [linuxsecurity.com] and witness the stream of security advisories that are announced for each Linux di
Re:Duh. (Score:3, Insightful)
Re:Duh. (Score:3, Informative)
This is untrue.
So the user you log into a XP machine with is in the equivalent of a user in the root or wheel group IMO...
This is mostly untrue, because being in the Administrator group in Windows gives you exactly the same abilities as the Administrator user account, with no extra step needed to escalate your own privledges.
Re:Duh. (Score:3, Informative)
...and.... (Score:5, Insightful)
Hmm. That's probably exactly how it'll happen.
Re:...and.... (Score:5, Informative)
Note that older versions of Firefox (and Mozilla) don't have the whitelist, and even older ones don't even have the dialog and are in fact vulnerable.
Re:...and.... (Score:2, Insightful)
Security is only as good as the person keeping watch. Sure, having all the bells and whistles is grand, but in the end human interaction (or lack thereof) can bring the biggest ship down.
Re:...and.... (Score:2)
So yes, if a web site promises all sorts of cool stuff if o
Re:...and.... (Score:3, Insightful)
Read some of the other posts on this thread, they're all going on about how FF can't be affected because it was 'designed from the ground up to be more secure', and 'there is inbuilt protection from viruses', and 'the developers would release a patch way quicker than microsoft'.
The advert telling people to get FF claimed it was more secure. So when people (deliberatly)install their IM smiley-banner-weather-forecast-search-toolbar extensi
Re:YES. (Score:5, Insightful)
Firefox doesn't rely on security through obscurity. It relies on security through process and architectural improvements, the same way anything should. Nobody has made any claims of perfection, simple of a superior process and architecture coupled with a much faster response time. So far, that has proven to be true.
I doubt it ... (Score:5, Insightful)
Overall, no matter how you slice it, Firefox is more secure and is designed from the ground up to prevent the "fertile feeding ground" that IE offers Spyware writers.
So no, you aren't going to see the same rampant irresponsibility that you see with IE, and the threat is a tempest in a teapot.
Of course, nothing is going to protect your computer from your own stupidity when opening executables, etc... that's all on the user whether or not they authorize code to run or not.
Re:I doubt it ... (Score:2)
How quickly would a Firefox security hole be patched compared to a similar hole in IE? Not trying to troll, just genuinely curious if someone in the know could give an insight into the patching/debugging procedures for IE and FF, and compare the
Re:I doubt it ... (Score:3, Informative)
Re:I doubt it ... (Score:3, Insightful)
But getting users to actually run the patch is a problem, wether it be IE, Windows, Firefox, Fedora, or Solaris.
The problem is most users dont patch unless they have a specific problem that warrents a patch. I think that more things need to nag when
Re:More secure? Really? (Score:3, Insightful)
Anecdotally, I don't have security issues with my Windows boxes when I use Firefox. When my wife uses IE, I find myself removing spyware. For me, in my experience, Firefox is more secure. You may write that off as a niche user in a niche market, but fuck you anywa
What people don't understand is this... (Score:5, Insightful)
Can't wait. (Score:2)
Fiddlesticks. Popularity is only part of it. (Score:5, Insightful)
The issue isn't really how many people are using it. That certainly does figure into it, but the very basic design philosophy of IE allows spyware to propogate easily.
Firefox has far better controls on what programs can be installed and can't be. Also, the very multi-platform nature of the code makes it harder to write an app that will work well.
I'm not worried. On the IE side, the only people who can fix the code are microsoft drones, and they won't do it. On the firefox side, the people who fix the code are the people who use it, namely us.
Planet-Geek [planet-geek.com]The popularity argument again (Score:5, Insightful)
Already happening (Score:2)
Have you noticed how easy it is to click 'ok' without even reading the dialog box?
The JRE plugin should include a time-delayed OK button, just as firefox does when installing plugins.
Spy vs Spy (Score:4, Interesting)
Re:Spy vs Spy (Score:3, Insightful)
I've already seen some... (Score:5, Informative)
Re:Explain yourself... (Score:5, Insightful)
That and OSS has coders that aren't being hamstrung by marketing weasels. If something is awesome, but would take too long to develop ("cost too much"), an OSS developer can still do it if he wants.
What guarantee do we have that the people looking at the code are even qualified to review? What insurance do we have against their work if it goes wrong?
None, same as closed source developers. No company will pay you, either voluntarily or in a lawsuit, for bugs in their code; neither will OSS. Read your EULAs.
Who's accountable?
Nobody, same as closed source developers. Both have reputations to uphold, but commercial developers only care about their reputation as a means to profit. If they can make money without bothering to have a good reputation, they will.
One advantage is that OSS developers have a reputation they would like to uphold. If they write crappy/insecure code, people stop using their code. Closed source developers will often say "well, it works, and it sells, so.." and let the developer stay on, making more bugs.
It's possible (Score:2)
Firefox No 1231 50.4 %
Mozilla No 953 39 %
MS Internet Explorer No 237 9.7 %
Safari No 10 0.4 %
Opera No 7 0.2 %
Unknown ? 2 0 %
Starting to look like a tempting target, no?
(FWIW the same month last year was 72% IE for rougly the same number of hits.)
The numbers game (Score:2, Redundant)
Attacking MS products because they are the biggest (Score:2)
"We are the subject of attacks because we're the biggest" is just so much horn blowing on the part of MS.
Defensive Measures (Score:2)
Maybe it even does, and I just haven't found it yet.
This will be a good test (Score:2)
"Expert"? (Score:5, Informative)
Their other expert is also from a company that makes similar software. So people who make anti-spyware software agree: you need anti-spyware software.
I'll be more concerned when independent parties think spyware in Firefox is an issue.
Re:"Expert"? (Score:3, Insightful)
At the same time, to be fair, his current position _is_ researching spyware - it is likely that he has a good understanding of it.
What kin
Re:"Expert"? (Score:3, Informative)
The difficulty with people in a VP position is there's no way of knowing if they have a technical background; I was part of a small startup company where our VP of engineering was also a primary developer, but it's not necessarily the case. My gut reaction is he's just presenting i
Low hanging fruit ... (Score:2)
If we posit that Firefox is a more difficult environment for malware, and I believe this to be true; then malware authors will continue to go after the low-hanging fruit of IE, even as its marketshare falls.
Infecting 60% of the population with a small amount of work, is far easier than infecting 40% of the population with an enormous outlay of effort.
Of course I'm living in a fantasy world, because I think that FF will reach 40% market penetration.
Why more than just two browsers is a good thing. (Score:5, Insightful)
If the market is indeed split into two major parts, this is actually a bad thing, because it gives you only two huge targets. That makes it easier and less expensive to create viruses, or take over computers for monetary purposes.
What we need is several browsers that each have a significant part of the market. Not just IE and Firefox/Gecko based browsers, but also Opera and KHTML based browsers. Maybe there would be room for even more as well.
It is good that an alternative browser is growing rapidly, but monoculture or duoculture makes life easier for virus makers. With four browsers, it would take four times the effort to get as much "bang for your buck" for virus authors looking to make money by infecting people.
Re:Why more than just two browsers is a good thing (Score:3, Interesting)
Let's let them continue to forget, so that I can browse the web in peace, huh?
If the market is indeed split into two major parts, this is actually a bad thing, because it gives you only two huge targets. That makes it easier and less expensive to crea
A Grand Day For Firefox (Score:3, Insightful)
So when Firefox becomes worth the effort, the folks in Redmond will really have to worry. In this game, nothing flags success like being the target of abuse! Tens of millions of Firefox users might just mean ten of millions of people considering something other than Windows. And that affects the bottom line for Microsoft. Hmmm, anyone heard of any OpenOffice exploits yet?
Re:A Grand Day For Firefox (Score:4, Interesting)
The hoped-for result would be that people would be discouraged from switching because they believed it didn't matter. They'd think I was going to get them one way or the other, so they might as well stick with what they're used to. The hoped-for result would be that people stay on IE and keep my job easier.
I'm not saying that this is what's happening, but I wouldn't be surprised if it were to happen.
FUD. (Score:3, Interesting)
Installing spyware on Firefox would be much more about social engineering (if you want to see this website, follow these instructions: download, choose "save as...". Then double click on it, yadda yadda..."
Of course, with people falling for phishing attacks, it wouldn't surprise me they'd be so stupid to do this. In that case, Firefox should issue a warning about "evil XPI files". At least that way when some moron says "bwaaa they told me firefox was spyware-free", we can ask: "Did you follow the evil website's instructions when they told you to install this XPI?"
Then all we have to do is repeat the worldy-famous Nelson quote.
He hit the nail on the head (Score:5, Insightful)
I think this part sums up the beauty of Firefox, and the reason why I don't think this is any sort of cause for alarm:
There is a whole community of brilliant frickin' people out there who have taken a personal interest in making sure Mozilla products are secure & as bug-free as possible. I don't think it would be an exaggeration to say that they might look at Firefox as "their baby."
More importantly, some of these individuals are well-versed with the shadier aspects of software...so I predict Firefox security holes being patched as quickly as they're found.
Not only that, but I don't see many Firefox users (especially not those that have used it since its early days) taking spyware/adware lightly...turning the other cheek or throwing hands up in frustration don't seem to be personality traits of bastards like us
same old story... (Score:3, Insightful)
I don't doubt snippets written to exploit Firefox's vulnerabilities will pop up, eventually in larger numbers. But that does not make the above argumentation any more valid, nor any less stupid. And we've been trhough argumentations about that, so I'll just skip that one.
In Un-Related News... (Score:3, Funny)
It's a different problem (Score:3, Insightful)
So the consequences of an IE exploit are typically far worse than the consequences of a Firefox exploit. This is just how it works with modular applications instead of system-level everything.
Of course, if you run ActiveX within Firefox, all bets are off...
The difference? (Score:3, Informative)
Firefox is already vulnerable to spyware... (Score:3, Informative)
Re:I got spyware from Firefox (Score:2)
Well I'm on Linux now. Let's see them get spyware on this laptop lol...
Re:I got spyware from Firefox (Score:2)
Re:I got spyware from Firefox (Score:2, Informative)
Re:I got spyware from Firefox (Score:4, Informative)
Probably didn't come through Firefox.
Re:I got spyware from Firefox (Score:3, Informative)
(It works with Mozilla and Firefox too, but MS always likes to call them Netscape...)
Re:Open Source Disadvantage (Score:3, Interesting)
At least I have a better chance of less exploits created because there are so many eyes on the code.
I've heard that openBSD developers have founded and fixed other security bugs while working to fix exploits, so I still don't see an inherent disadvantage to using FireFox vs. Explorer.
Re:Open Source Disadvantage (Score:2)
at least with firefox I have confidence that it won't have total OS access, unlike IE where, for example, it can silently trigger arbitrary hard drive access just by clicking on a scrollbar (even with SP2) [finding the article about this example is left as an exercise for the reader/karma-whores].
I am also confident that the patch will actually come in a reasonable time. yes it may be opinion and not fact, but it's still true that I have infinitely more faith in
Re:Open Source Disadvantage (Score:3, Funny)
People are confused by change. They LIKE stuff that doesn't change. Do you have any idea how many lonely people their computer is their only window to the outside world?
Patch it too quickly and they won't have anything to talk about, they won't have all those spams from other computers that are pwn3d, and they'll end up committing suicide some lonely Christmas day because they are now completely and utterly alone.
Do you have an
Re:How? (Score:2)
So...basically IE still plagues Firefox users. Granted, with more recent version of Firefox, this is not really an issue.
Re:The record keeps skipping. . . (Score:5, Insightful)
I doubt that this is true. Apache has a greater market share than IIS. There are more exploits and worms for IIS than there are for Apache.
You may be safe if you are small. You are safer if your design takes security into account up front, and that design remains intact through implementation.
Windows is insecure by design. Therefore, there are windows exploits. Unix, Linux, and MacOS X were designed with multi-user security in mind from the beginning; they are more secure than Windows.
Re:Java spyware? (Score:3, Informative)
they'd have the same access as a regular desktop java-app?
No. Java Applets have always been sandboxed and run with a security manager that disallows reading/writing to the hard disk and connecting to any network domain but the one that the applet came from.
So yes, you could run it, but the applet can't actually see or do anything outside of itself.
Re:Been here a while (Score:3, Informative)
Example is here [cracks.am] (NSFW), try to download a file if you want to see what I mean.
All right, I'll bite.
Middle-click on link to open in new tab. Deny www.cracks.am from setting a cookie. Click the letter "C" in the alphabetical set of links. Click the link for "C++ Editor v1.0". Deny install.xxxtoolbar.com from setting a cookie. Click the "Download a File" button. Then two dialog windows appear. One is titled "JavaScript Application" and says "Download ABORTED -- You must click YES". Hitting "OK" (
Re:duh (Score:3, Interesting)
Yes, we will see more Firefox/Linux/Mac viruses/exploits in the future.
However, the 'barriers to entry' will be higher, because these systems simply are MORE secure.
Evidence? Server marketshare. Linux has comparable marketshare to Windows, yet Linux is compromised less often.
Not never. Linux IS indeed compromised, and at statistically significant levels.
But given the comparable marketshare, linux is compromised quite a bit less.
I suspect the desktop landscape wi
Re:Love Firefox, but can dump IE (Score:4, Insightful)
I'd disagree, I am not saying that Mozilla support 100% perfectly the w3c's standards, but then they are constantly working towards supporting as much of it as reasonably possible (some of the more esoteric areas of the CSS specification will probably never be fully supported). Microsoft OTOH had pretty much just left IE to rot until relatively recently (infact their main motivation for modernising it seems to be the rise of FireFox), but even when IE7 is released it will only be made available to either >Longhorn or >XP users (I don't recall which).
I strongly disagree, for the end user propriatary extensions to the HTML/XHTML specifications are not a good thing, it means they're restricted to viewing a site on a particular browser which is unnecessarily taking choice away from them.
I'm not sure what you're trying to say...
I assume you're referring about agreeing to work off a single specification telling them what markup and such to support... this is the goal of the w3c [w3c.org] is, and they've got many specifications which browsers are supposed to aim to follow. The Mozilla team seem to be trying to follow these specifications but Microsoft seem content to just do their own thing and/or only do a half-arsed implementation of certain specifications.