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MR Tech Disable XPI Install Delay Requires Restart
Disables default delay when installing...
POW -- Plain Old Webserver Requires Restart
Turn the web on its head with the Plain Old Webserver (POW), which adds a server to your browser.
RequestPolicy Requires Restart
Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.
URL Fixer
URL Fixer fixes common typos in URLs entered in the address bar. It will fix errors like "google.con" or "youtube,com". You have the option of being asked to confirm corrections before they are applied.
Cookie Importer Requires Restart
Imports cookies from a textfile.
Reads Netscape standard cookies.txt files as exported by IE and others.
Very useful in combination with the Cookie Exporter add-on.
Restartless Restart
This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.
FireFTP Requires Restart
FireFTP is a free, secure, cross-platform FTP/SFTP client for Waterfox which provides easy and intuitive access to FTP/SFTP servers.
Check out my new project, FireSSH!
Copy Pure Text Requires Restart
Allows to copy selected text as plain text by adding a 'Copy as Text' menu item to context menu.
Firesizer Requires Restart
Allows you to resize the window to specific dimensions.
NOTE: Users of Firefox 29 and above must install "The Addon Bar" extension to use this, as Firesizer uses the add-on bar that has been removed in Firefox 29.
RefControl Requires Restart
Control what gets sent as the HTTP Referer on a per-site basis.
Fire IE (FireIE, Enhanced IE) Requires Restart
Embeds Internet Explorer(IE) to use the powerful Firefox add-ons.
Not only an enhanced IE Tab, but also an enhanced Internet Explorer with Adblock Plus and FireGestures support.
Switch to the IE engine in one click and dismiss your IE.
Extensor
Quick access to add-on functions from a toolbar panel: Options, (De)Activate, Details, Home page, Review page, Donation page, Uninstall, Restart application.
Whois & Flags Firefox & Websites Popularity Rating Requires Restart
Display Country Flag indicating Website Physical Location (Country, State, City). Website Popularity (Live Visitor Statistics). Shows how many users are visiting any World Website per day. Website IP IPv6 Addresses, DNS, Hosting. IP Whois Lookup
View Dependencies Requires Restart
View Dependencies adds a tab to the Page Info window, in which it lists all the files which were loaded to show the current page.
To create your own collections, you must have a Mozilla Add-ons account.