From: ERIC FERGUSON III by way of the Internet (original author unknown, but I will gladly give credit if you contact me)
Allow Right-Click 0.3 - Defeats web sites' right-click prevention scripts.
Always Remember Password 0.3 - Makes the browser ignore web site requests to not remember passwords.
BBCode 0.4.1.3 - Adds Formating (BBCode/HTML/XHTML/etc.) to the context menu for Blogs and forums like Mozillazine (PHPBB and others).
CuteMenus - Crystal SVG 0.9.9.64 - Adds icons to all menus items.
DictionarySearch 1.5 - Looks up selected word in an online dictionary
Disable Targets For Downloads 1.0.1 - Prevents download links opening a blank window.
Download Embedded 0.2 - Downloads all embedded objects on a webpage.
Download Embedded 0.1 - Downloads all embedded objects on a webpage.
DownThemAll! 0.9.8.7 - The mass downloader for Firefox.
Duplicate Tab 0.7 - Allows you to duplicate a tab, or to merge the windows.
Fasterfox 1.0.3 - Performance and network tweaks for Firefox.
FireFoxMenuButtons 1.1.2 - Adds 30 Buttons (duplicating of menu strings) from Firefox Menu on the Toolbar
Forecastfox 0.8.5 - Get international weather forecasts and display it in any toolbar or statusbar with this highly customizable extension.
Gmail Notifier 0.5.5 - A notifier for Gmail accounts.
Google Images Re-Linker 0.3 - Jumps directly to the full-size image on images.google.com.
Google Pagerank Status 0.9.5 - Display the google pagerank in your browser's status bar.
GooglePreview 1.2.1 - Inserts web site previews in google and yahoo search results.
IE Tab 1.0.7 - Open IE-only pages in "embedded IE" !!!
IE View 1.2.7 - Open pages in IE via Firefox menus
Image Zoom 0.2.3 - Adds zoom functionality for images
ListZilla 0.7 - Outputs an alphabetical list of extensions to a text, vB code, or HTML file.
Location Navigator 0.6 - An extension that lets you increment/decrement
Menu Editor 1.2 - Customize application menus
Minimize to Tray 0.0.1.2005091606+ - Minimizes Mozilla windows into the system tray
Open link in... 1.4 - Adds more tab/window opening options to the context menu for links and images.
OpenDownload 0.2.3 - Allows you to open any file from the internet into the OS assigned program.
Paste Quote 0.3.1 - Lets you paste text as forum quotations from the context menu.
Plain Text Links 0.2 - Treat selected plain text urls as links, right click to open
Popup ALT Attribute 1.3.2005092701 - Popups alternate texts of images or others like NetscapeCommunicator(Navigator) 4.x, and show long descriptions in the multi-row tooltip.
Popup Count 0.3.1 - Counts the number of blocked popups.
Redirect Remover 1.1 - Removes redirects from links
ReloadEvery 1.5 - Reloads webpages every so many seconds or minutes
RiteOfTongue 0.3.2 - Right-click on typed text to get alternate spellings powered by Yahoo! Search.
Save Image in Folder 0.7.3 - Easily save images in personally customized folders.
Save Link in Folder 0.9.3 - Easily save links in personally customized folders.
Screen grab! 0.7 - Takes a screen shot using Java.
SearchPluginHacks 0.1.3 - Allows uninstalling search plugins - just right click on a search plugin and choose 'Delete'
SEOpen 0.6.1 - Provides some basic tools to help with search engine optimization.
Show Failed URL 0.1.4 - Displays failed URLs in the Location Bar when XUL error pages are enabled.
Show Old Extensions 0.1.7 - Display pre-0.9 extensions in the manager.
SiteAdvisor Firefox Extension 19.0 - A SiteAdvisor Firefox Extension for safe searching
Slim Extension List 0.3.1 - Makes items in extension list shorter, so you can see more at once. Also, sorts them by name.
SmoothWheel 0.44.7.20050605 - Scrolls the document smoothly when scrolling the mouse wheel
SpellBound 0.7.3 - Adds spell checker support to web forms and extensions.
Stop-or-Reload Button 0.2 - Turns the stop and reload buttons into a single one. When you can stop, you have a Stop button, otherwise you have a Reload button. (Like in Safari)
SwiftTabs 0.3.2.4 - You can move to the next tab or the previous tab and close the current tab with a key.
TabSwitcher 1.1 - TabSwitcher allows you to switch between tabs with customized shortcuts. Defaults are Ctrl+Left/Right.
Translate 0.6.0.8 - Translate web pages and/or selected text to different languages
Tweak Network 1.1 - Tweak network settings.
WellRounded 0.43 - Provides rounded URL and search bars.
Whois Lookup 0.1 - Displays whois data for the current url in a new tab