Here are the current Firefox Add-on extensions I'm running on my home desktop system.
Haven't offered them for a while (March) some new ones added, some old ones dropped.
I've taken the time to add brief descriptions to them...mostly from the developer's own words.
Enabled Extensions: (37)
Adblock - Adblock is a content filtering plug-in for the Mozilla and Firebird browsers.
Advanced Dork: - Gives quick access to Google's Advanced Operators from the context menu.
Better Gmail - Put your Gmail on steroids with Better Gmail. (Lifehacker)
CacheViewer - This extension is GUI Front-end of "about:cache".
CoLT - Makes it easy to copy a hyperlink's associated text and URL at the same time.
Copy Plain Text - Copies text without formatting. Use from the Edit or context menus.
Download Statusbar - Keep track of ongoing and completed downloads in a hide-away status bar.
DownloadHelper - Save videos from sites to your hard disk.
Dr.Web anti-virus link checker - Scan for malicious programs any web link before it is opened.
East Asian Translator - Translate Asian language web pages with service provided by excite.co.jp.
Enhanced History Manager - Provided additional history sorting and management features.
Fasterfox - Performance and network tweaks for Firefox.
Favicon Picker 2 - This extension adds a UI for replacing bookmark icons.
Firekeeper - Firekeeper is an Intrusion Detection and Prevention System for Firefox.
FoxClocks - Display world times in your status bar.
Full Map - See more of the actual map on Google Maps. Rotate through 3 modes.
Fullerscreen - Enhances the full screen mode into a Really Full Screen mode.
Google Browser Sync - Continuously synchronizes your browser settings across your computers.
gTranslate - Translate text in a webpage by right-clicking over it. Uses Google translation services.
Linky - Open or download links, image links and web addresses found in the page text.
ListZilla - Outputs either a plain text, vB code, or HTML file listing all installed themes or extensions.
Make Link - Adds a context menu item to copy links to the clipboard in HTML or simple text formats.
MeasureIt - Draw a ruler across any webpage to check the page elements in pixels.
Nightly Tester Tools - Adds a few extras useful to those that regularly test Mozilla's nightly builds.
Restart Firefox - Adds a "restart" button to the toolbar to restart Firefox.
Sage - RSS and Atom feed reader extension for Mozilla Firefox.
Save Image in Folder - Save images into different folders via right-click context menu.
SearchLoad Options - Adds a menu for tweaking the search bar's default behavior.
Secure Login - Uses the built-in password manager, but deactivates the pre-filling of login forms.
Smart Link - Adds open in new tab / window options to right click menu for plain url texts.
TargetAlert - Provides visual cues for the destinations of hyperlinks.
translator - Translate web page into nearly any language - multiple translation service support.
Uppity - Hop Up the URL structure of a page via the address bar to quickly navigate a website.
User Agent Switcher - Switch the user agent of the browser.
Viamatic foXpose - View all your tabs inside a single browser window.
Have fun picking through them.