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Gmail Manager-community Requires Restart
Manage multiple Gmail accounts and receive new mail notifications.
Live HTTP Headers (Fixed By ITWorld.com.pk) Requires Restart
View HTTP headers of a page and while browsing.
Live HTTP Header Fix By Danyial ITs Working On Firefox Again Fixed Reply Problem
BugFlags Requires Restart
Lists the request flags for a specified requestee
Serenatas For You
En 4 pasos envía la serenata, sencillo, seguro y rápido.
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...
XL2Report Requires Restart
Report und grafische Auswertung für Messungen mit dem XL2-Audio und Akustik Analyzer von NTi Audio
Answers Questions Requires Restart
Adds to browser simple answers questions scripts generator.
Profile Buttons
A button to be able to open the profile folder, along with two buttons to create profiles, and also switch the current profile.
Version Number in Add-ons Manager
[Restartless] [e10s Compatible]
Easily viewable version info in the Add-ons Manager on Firefox/Thunderbird 41.0 - 56.*
Also restores the add-on version number on Firefox/Thunderbird 41.0 - 56.*.
about:config Button
Open about:config to change hidden settings that cannot be edited from the Options window. All Mozilla based programs have settings that can not be changed in the options window.
All Menus Button
Show all the menus in a single menu button that can be placed anywhere. Also contains replacement buttons for the default menus.
Page Colors & Fonts Buttons
Adds buttons to toggle the using the default page colors and fonts, and the page defined colors and fonts.
About:about Button
A button that lists all the about pages that exist. Some of these pages are also provided as separate buttons.
Page Navigation Buttons
Adds a few buttons to help with page navigation, including Page Top, Page Bottom, Page Down and Page Up.
To create your own collections, you must have a Mozilla Add-ons account.