Firefox can be so much more than just a browser via its huge extension base. Here are 18 tools to turn your Firefox 3 browser into a communications portal.
Firefox only (Windows/Mac/Linux): If you like the concept of bookmark tags introduced in Firefox 3 but just can't seem to get into the habit of using them, Firefox extension Tagmarks adds tag images to your awesome bar for quick and easy bookmarking and tagging. Once installed, you'll see several new images next to the default star when you hover your mouse over the star. Click one to both tag and bookmark that page in one fell swoop. You can click on as many of these tags as you want, and when you view your bookmarks, you'll notice text tags have been automatically assigned. Tagmarks is free, works wherever Firefox does. Hopefully we'll see a more customizable version of Tagmarks in the future.
Firefox only (Windows/Mac/Linux): If you're sick of clicking through to subsequent pages of online articles, Firefox extension Repagination adds an option to your context menu to pull all of the pages onto one. After installing the extension, just right-click a page's Next link (or the 2 link, for example) and select to view all pages or a limited number. Repagination will load the pages you tell it to inline at the end of the current page so you don't have to reload at every turn. I tested it on Lifehacker, this barefoot walking article, and Google, and it worked flawlessly with all of them. The only downside is that it loads the entire subsequent page and not just the text, but it's better than the annoyance of multi-page articles. Repagination is free, works wherever the 'fox runs.