Up & Coming Extensions
Set a minimum text size for all web content. Use the toolbar button to switch it on and off. NEW: Three preset sizes. NEW: Use mouse scroll on the toolbar button.
Duplicate This Tab Requires Restart
This add-on provides the much needed feature update of Tab Duplication to Mozilla Browsers. Features Supported include Duplication of Browser Tabs, Detaching Tabs and Merging All Windows.
CustomizeGoogle Requires Restart
CustomizeGoogle enhances Google by adding information and removing unwanted information.
Mail Merge Requires Restart
Mass Mail and Personal Mail
Watch videos anywhere in cinema mode without leaving the website you're on.
Rikaichan Japanese Names Dictionary File Requires Restart
A dictionary file for Rikaichan.
Rikaichan Japanese-English Dictionary File Requires Restart
This is a dictionary file add-on for the Rikaichan extension.
Extension List Dumper 2 Requires Restart
This extension adds a button ("Dump list") to the Add-ons window. When this button is pressed, a new window is opened with the list of installed extensions, themes or plugins...
UnMHT allows you to view MHT (MHTML) web archive format files, and save complete web pages, including text and graphics, into a single MHT file in Firefox/SeaMonkey.
This 15KB restartless add-on will add a "File" -> "Restart" menu item and a ctrl/cmd + alt + r hotkey to restart Firefox or Seamonkey.
Folderpane Tools Requires Restart
Allows for customization of the folder pane. Accounts can be rearranged and the startup folder can be chosen.
Edit Bookmark Plus Requires Restart
Resize 'Add Bookmark' Popup / 'Edit This Bookmark' Popup, fixes tree selection bug, option to disable popup auto close & Update Url and/or Name of a bookmark with the Url/Title of current page.
Replacement of OpenBook addon
Restores version numbers for all installed add-ons inside Add-on Manager on Firefox, Thunderbird and Seamonkey.
MetaProducts Integration Requires Restart
Integrate MetaProducts software with Mozilla browsers. Download links and Web sites using Mass Downloader and Offline Explorer. Save Web pages as you see them for future reference with MetaProducts Inquiry.
Switch tabs by scrolling with the mouse wheel in the tab bar.
MinimizeToTray revived Requires Restart
Minimizes windows into the system tray.
cacaoweb Requires Restart
Watch videos without limit
ReminderFox Requires Restart Featured
ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program.
tzpush Requires Restart
Z-Sync to Thunderbird Addressbook
Will sync Thunderbird address book to Zentyal, Zarafa, Horde and outlook.com/hotmail.
Fierr Requires Restart
Replaces the error page with a more stylish appearance with additional features.