Category: Web Browsers

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FirefoxOne of the biggest complaints about Firefox since 1.5 was released has been its high memory usage. Go to a forum anywhere and you’ll get people griping about “have they fixed the leak yet?”

It is, of course, much more complicated than that. There are caches, fragmentation, places where memory is used inefficiently, bunches of small leaks, leaks that only happen under specific circumstances, leaks in extensions, leaks triggered by combination of extensions, etc.—not one single leak that can be fixed. And then there was the unfortunate post in which one Mozilla developer (I’m too lazy to look up who) pointed out that 1.5 stored more information in memory, and that probably had a bigger impact on total memory size than actual leaks, which many people on the Internet jumped on as “It’s not a bug, it’s a feature.” (Why should they bother to read what was actually stated, when they can just read a misleading but sensational summary?)

A lot of the small leaks were patched in bugfix releases for 1.5 and 2.0, but really big changes are coming in Firefox 3. Mozilla’s Pavlov has written a detailed post on Firefox 3 Memory Usage, describing the different categories of memory improvements that have been made in the Firefox 3 development cycle.

I wouldn’t be surprised to find that this is one of the big reasons Firefox 3 has taken so much longer than previous releases. I suspect it’s time well spent, though, and users will be happier with a later, lighter Firefox than with one that shipped earlier, but used just as much memory.

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Internet ExplorerInstalled the first Internet Explorer 8 beta. Some thoughts:

I’m impressed that it can import settings from Firefox & Safari.

It detected Firefox extensions and even offered to look up similar add-ons. Unfortunately it was a big long search string with all the titles, and therefore a useless list of results for things like cameras (yeah, how am I supposed to install a $1000 Nikon D80 on my web browser?) and the hint book for Splinter Cell.

Activities: My first thought was, “hey, they’re doing stuff with microformats!” Which is key to the underlying support (recognizing types of data and only offering relevant services, like maps for locations but not for book titles). But on the face of it, it’s a lot more like the way Flock integrates with various web services: Set up your blogging provider, and you can easily send stuff to your blog. Though right now they mostly have Microsoft-hosted services.

“Emulate IE7” appears to involve restarting in an alternate mode right now. I assume automatic switching is something planned for later betas.

Other than that, the UI seems about the same as IE7 so far.

It does indeed pass Acid2 (assuming the page isn’t swamped when you try to load it).

So, how else does its rendering differ?

Minor visual glitch: I have CSS-based banners on some pages (W3C validation, for instance), using spans with borders. If it’s on the last line of a page, IE will cut off the bottom border, because it extends past the end of the page. Other browsers show it. I’ve gotten around this in the past by adding a blank paragraph afterward, but now IE8 collapses the empty paragraph. That’s probably the correct thing to do, but it does mean adjusting things a bit. Not a big problem, though, because I’ve just noticed that it handles other pages fine, without the <p></p> workaround, which means that I’m probably already using a better solution elsewhere.

Several cases of re-styling UL lists seem to confuse it. The tabs running across the top of my Flash page, for instance, or the sidebar on the Alternative Browser Alliance. Others appear just as they do in other browsers (including IE7). This will bear investigation. (Edit: 2 different problems; see below.)

Still no sign of generated content. Beta 2? Please? Edit: according to CSS3.info, it does support generated content, but images don’t work (yet?). I’d been using this, progressive-enhancement–style, to add icons for outgoing links on my Flash site. It works in, well, everything else current.

Additionally: I’m surprised to see it so early, and to see it as a public beta and not something that required an MSDN login. And they had the sense to release a version for Windows XP! I was half-expecting it to be a Vista-only release, which would’ve been seriously annoying.

Further updates will be added below as I think of them.

It turns out the problem on the Alternative Browser Alliance menu wasn’t related to lists as I’d thought, but to a change in the CSS parser. For whatever reason, IE8b1 is susceptible to the Caio Hack (/*/*/ place code here /* comment */) normally used to hide CSS rules from Netscape 4. At this stage I should probably be able to remove it and not worry about NS4 anymore. (And it turns out that since I added media types to the link a while back, NS4 doesn’t even read the stylesheet in the first place!)

On the issue with the tabs on the Flash site, it looks like IE8b1 isn’t extending backgrounds beyond the text line on inline elements (oddly, also like NS4). This is probably what’s really going on with the CSS buttons I mentioned above. I’ll have to check which behavior is correct, but my money would be on the Gecko, Opera and WebKit interpretation. If so, this will probably be changed before the final release. If not, I’ll use inline-block instead. Which perhaps I should be doing anyway, except for the annoying fact that Firefox 2 doesn’t support inline-block and Firefox 3, which does, is still in beta.

I’ve reported the Caio Hack issue to Microsoft using their “Report a Webpage Problem” tool. The form emphasizes that you shouldn’t send anything that could identify you, so instead of reporting the problem on one of my own sites, I sent the page describing the hack. This probably means I reported it in the wrong way. 😕

It looks like Activities isn’t actually context-sensitive yet, since it’s offering to show me a map even when I’ve selected random prose instead of an address.

Having messed with it more than I probably should over the last 24 hours, I’ve come to a decision: During beta 1, any rendering problem I encounter in IE8b1 that works the way I want it to in Gecko, Opera, Safari and IE7, I’m going to assume is a bug in beta 1. I’ll try to narrow them down & report them when I have a chance, but I won’t actually change my sites’ code (except for retargeting IE-specific workarounds) until at least beta 2.

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The WaSP Buzz recently posted several links to CSS resources, including a rather thorough CSS Reference at SitePoint.

The ISC reminds us that IE7 will be pushed out to WSUS next week, which should help get rid of IE6. Yeah, I’d rather more people switched to Firefox or Opera, but I’m at the point where I’d love to be able to stop worrying about IE6’s shortcomings when trying to build sites. IE7’s shortcomings are much easier to work around. (Sorry to keep harping on this!)

The inventor of Norton Antivirus talks about computer security and has some rather interesting ideas on what policies are worth pursuing…and what policies aren’t. Long passwords? Great for protecting a stand-alone machine, but on a 10,000 machine network, they only need to crack one. Patch everything? Not every vulnerability gets exploited. I’ll have to read the Slashdot thread when I have time; that should be really *ahem* interesting.

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2008: Year of the Layout Engine – CSS3.info takes a look at the four major categories of web browsers, and where they’re likely to go this year.

Progressive enhancement is an approach I’ve been taking for quite a while, particularly with my personal sites, but it’s starting to creep into sites I’m building for work as well. Essentially: Build it to look decent in everything, but throw in enhancements to browsers that you know can handle them.

An example of progressive enhancement: the rounded corners on the tabs on my Flash site. They’re not critical to the design, but it does make it look better in Safari and Firefox. And in theory, Opera and IE will eventually pick up the capability. (Though in this case, since border-radius is still experimental, I’ll have to change the CSS when they do—so maybe it’s not the best example.)

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I’ve been meaning to post these photos for a while now, but with the discussion on Netscape’s impending doom, I should post them now.

Back in February, I was wandering the aisles at Micro Center and noticed a couple of odd software titles on the shelf:

  • Netscape Basics, a jewel-cased CD-ROM which contained Netscape Communicator 4.5 and boasted compatibility with Windows 95 and Windows 98.
  • Opera for Windows, a boxed copy of I forget-which-version, but judging by the “New! Voice Enabled!” badge, it’s probably 8.0.

Keep in mind that this was February 2007. So that was an 8-year old Netscape box, and a 2-year-old Opera box. Netscape had been free for 9 years, and Opera had been free for 1½ years.

Someone had sensibly marked the Netscape CD down repeatedly, ending with a price tag of $0.42. I was half-tempted to buy it just to prove that I’d found it, but decided taking a picture would be better, since it wouldn’t clutter up my desk. Incredibly, no one had thought to mark down the Opera box. They were still asking $39.99 for it.

Did I mention pictures?

Netscape Basics CD for $0.42 Opera for Windows for… $39.99