It's not a revelation that Gmail functionality is one of our pet obsessions. Better Gmail 2 fixes or answers a lot of our Gmail complaints and wishes in one neat package.
You can individually enable or kill any of Better Gmail's more than a dozen fixes and improvements, and whenever a great new Gmail user script hits the Greasemonkey realm, you can count on seeing it added to Better Gmail.
Tab Mix Plus
Remember browsing before tabs? We kind of recall a faint smell of kerosene and words like "dubloon" still in use. In all seriousness, browser tabs are the key ingredient to how many of us multi-task on the web every day, and Tab Mix Plus is a master key for everything you like or loathe about tabs.
It controls which links open in a new tab, new window, or same window to an OCD-friendly level, adds key features like italicizing the text on tabs you haven't viewed yet, and super-powers Firefox's undo closed tab feature. It gets way, way more intricate than that, but even for just the bare basics, it's totally worth the install.
Fox Marks
Foxmarks is gradually rebranding as Xmarks, but what we really like about Fox/Xmarks remains the same as the last time it claimed the Must-Have crown: It's nearly seamless at keeping your bookmarks and passwords synchronized between browsers on any platform, and stores them on a site you can visit from any browser where you can't install an extension.
If you're not down with the cloud, you can even tell this extension to store your stuff on your own server. Foxmarks is also available on IE and Safari, and you can separate your work bookmarking from ooh-cool life stuff with selective bookmark profiles.
It's the tool that lets you keep fleeting thoughts, IM links, and other ephemeral web stuff all together, so of course we dig on it. The transition to Xmarks adds a few semi-nifty, social-y features to your searching and bookmarking, but if you're not keen on those changes, you can easily disable them in the Xmarks preferences.
Google Gears
t's a bit more technical than most browser extensions, but for all intents and purposes, Gears is an easy-to-install add-on that unlocks an entirely new world to the internet.
Primarily, it takes Google apps offline—Gmail, Google Reader, Docs, and Calendar—but a handful of other apps make good use of its mini-database powers, including Remember the Milk and PassPack. Still, given the kind of impressive implementation Offline Gmail received, we've only scratched the surface of the potential in them there gears.
Down Them ALL
Not a tool you need every day, but really useful when you want it, DownThemAll is a selective, powerful download manager. It makes short work of snatching all the images on a page (including those links to the "bigger" or "zoom" versions), all the MP3s off a music blog, or any other kind of filter you can set up.
Gina's showed us how to do some smart tune-grabbing and Flickr downloading with her guide to supercharging your Firefox downloads with DownThemAll, but her walkthrough should work for any types of files and any page. Incidentally, DownThemAll isn't just one of our favorites—it's also the most popular download manager among Lifehacker readers.
