Flashblock is an extension for the Mozilla, Firefox, and Netscape browsers that takes a pessimistic approach to dealing with Macromedia Flash content on a webpage and blocks ALL Flash content from loading. It then leaves placeholders on the webpage that allow you to click to download and then view the Flash content.
CustomizeGoogle is a Firefox extension that enhances Google search results by adding extra information (like links to Yahoo, Ask Jeeves, MSN etc) and removing unwanted information (like ads and spam).
Adblock Filterset.G Updater
An extension for Firefox that automatically updates Filterset.G. Also allows personal filters that persist across updates. Requires Adblock or Adblock Plus.
Ever been annoyed by all those ads and banners on the internet that often take longer to download than everything else on the page? Install Adblock Plus now and get rid of them. Right-click on a banner and choose “Adblock” from the context menu — the banner won’t be downloaded again. Or open Adblock Plus sidebar to see all elements of the page and block the banners. You can use filters with wildcards or even regular expressions to block complete banner factories.
Compact Menu is an extension for the Mozillan Browser (Firefox) and Mail client (Thunderbird) that allows you to reorganize the menu options on the menu bar in such a way that the user has more horizontal space on the menu bar to add buttons or other options. It allows you to have one option called 'Menu' which acts as a drop-down list in which the normal menu items are shown in the order that they would appear on the menu bar. You can also choose to not display the word 'Menu' and use an icon instead.
This is a Firefox extension that allows you to manage multiple Gmail accounts and receive new mail notifications. Displays account details including unread messages, saved drafts, spam messages, labels with new mail, space used, and new mail snippets.
Tab Mix Plus enhances Firefox's tab browsing capabilities. It includes such features as duplicating tabs, controlling tab focus, tab clicking options, undo closed tabs and windows, plus much more. It also includes a full-featured session manager with crash recovery that can save and restore combinations of opened tabs and windows.