15 Add-ons in this Collection
Greasemonkey by Anthony Lieuallen, Aaron Boodman, others
Use tamperdata to view and modify HTTP/HTTPS headers and post parameters...
IE Tab - an extension from Taiwan, features: Embedding Internet Explorer in tabs of Mozilla/Firefox...
Use PDF Download to do whatever you like with PDF files on the Web. Regain control and eliminate browser problems, view PDFs directly in Firefox as HTML, and use the all-new Web-to-PDF toolbar to save and share Web pages as high-quality PDF files.
Visual bookmarks for Firefox. (Works with all latest versions of Firefox)
Saves highlighted text to a file in the specified directory
CLEO by Chuck_Baker
CLEO (Compact Library Extension Organizer) is a Firefox extension that works with FEBE* to package any number of extensions/themes into a single, installable .xpi file.
Link Alert by conlan
Displays an icon in the tooltip or next to the cursor indicating the target of a link.
Automatically searches for the text in the search box when another search engine is selected.
Lists installed add-ons (extensions, themes, plugins). Compatible version linked from the Developer comments section at the bottom of the addon's page.
This extension will enable you to organize your status bar icons. You can now rearrange or remove any item (icon or text) in the Firefox status bar. If your status bar is full and cluttered like mine was, give this a try.
This extension allows for customization of the Add Bookmark dialog. The bookmarks tree can be automatically opened and elements can be revealed or hidden. Also, the dialog can be resized!
This add-ons adds a set of icons to the quick bookmarks, allowing you to quickly add tags to your bookmarks by clicking on each icon.