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Firefox 3 doesn't store your bookmarks in the plain old HTML file that Firefox 2 did, so desktop launchers like Quicksilver and Launchy can't index them properly. But the HackCollege blog has a...

Dear Lifehacker,
Even though it may "void my warranty," I've made changes in Firefox's about:config area based on tweaks you've published and ones I've seen elsewhere. Problem is, at some point I...

Reader Oshayr has been making all kinds of about:config tweaks to Firefox after reading our power user's guide to Firefox 3 and top Firefox config tweaks, but he's discovered that all that tweaking...

If the digital photo you just uploaded looks washed out on Flickr compared to in your desktop image editor, that's because Firefox 3's advanced color profile support isn't turned on. To enable it,...

Firefox 3's Smart Location bar suggests URLs as you type based on an algorithm that combines both how often you've visited a web site before, and whether you've got it bookmarked. A combination of...

If blinking text on a web page (like in the comments here on Lifehacker) is threatening to give you a seizure—or just making your head hurt—you can disable it in Firefox with a simple...

Firefox 3's new Smart Location Bar earns its unofficial title of "AwesomeBar" right out of the box. The location bar suggests web site addresses as you type from your bookmarks and history, and...

You already know about Firefox 3's marquee new features, but now it's time to dig deep and unearth the shortcuts, tweaks, and even Easter eggs that Mozilla marketing doesn't mention. In honor of...

In today's earlier list of five extensions you won't need in Firefox 3, we said you won't need any special toolbars, third-party apps, Greasemonkey scripts, or extensions to get Firefox to use...

Weblog Daily Gyan points out a simple about:config tweak that disables the installation delay for new Firefox extensions. As you may know, Firefox tries to protect you from malicious attacks by...

Want to know where all those Firefox plug-ins (not extensions) like Flash and QuickTime actually live on your computer? An about:config tweak reveals the full file path and can help you troubleshoot...