Extensions by Weekly Downloads
Add or switch or preview persona/light themes without restarting Firefox.
Quickly deletes pages with a default reason on MediaWiki websites with many shortcuts.
This simple addon has only this functionality, nothing else: it opens links in a new active tab with Shift+LeftClick (left mouse button click).
Better use https://addons.mozilla.org/ru/firefox/addon/shiftleftclick-opens-links-in-/ for FireFox.
Dodatek dodający szybkie menu portalu dobreprogramy.pl.
No More .org No Restart
No More .org prevents Firefox from loading websites with .org in the URL. This add-on was made for testing in Firefox
Colour your text to the "last-picked" colour you chose in the colour-picker. Now you don't have to use the colour picker every time.
MathML-ctop No Restart
Converter from content MathML to presentation MathML
An HTTP analyzer addon for Firefox, fork from HttpFox with features like: summary by host, and more coming soon
Multiple Addon Deactivator (M.A.D) is an addon that can (de)activate one, many or each addon at the same time
AutoSave is an Add-On to the firefox extension ScrapBook Plus by haselnuss and ScrapBook with XSidebar for SeaMonkey. This is a modified version of the original Add-On. Uninstall the original AutoSave before you use this extension.
Shows previous page on the left side
Link suggestion: based on user's local browsing history only.
Browsing history searching: list the pages from where you visited one page, and all the other pages you visited from those pages. Keywords searching, Scrapbook support, naive sharing.
Tabinta lets you insert tab characters in multi-line text input fields. The name itself is a shorthand for "Tab in Textarea"...
Note from Mozilla: This add-on has been discontinued. Try MinimizeToTray Revived instead.
Minimize applications to the system tray.
An integrated sidebar-dictionary for Japanese and Chinese including kanji dictionary.
Implement the "Sensitivity" header for outgoing messages (described in RFC 4021 section 2.1.55).
Forked from another add-on developed by ff_bob, added SPX header for Sophos security appliances
convert session files of yamaha consoles, print channel lists and reports
Tools for Meyersound's MAPPonline
Updated version of imageblock by Hemant Vats to work with seamonkey 2.29.
Provides a fast way to disable images in web pages that's usually set by the image manager sub-menu.