Add-ons
Interface Customizations
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Metal Lion Image Saver
Requires Restart
Single-click access to common actions for images (e.g. saving, copying, printing)
MinimizeToTray Reanimated
Requires Restart
MinimizeToTray Reanimated is an application mainly dedicated to Thunderbird to allow its minimization in the systray in one click. It is the update of MinimizeToTray Revived, which is not maintained anymore since the recent versions of Thunderbird.
Theme Font & Size Changer for ThunderBird
Theme Font & Size Changer lets you change the global font size and font family used for the user interface in Firefox. Design your browser with your favorite font.
Dark Background and Light Text (SeaMonkey)
Makes every page to have light text on dark background (exact colors are customizable)
Firefox version is here: https://addons.mozilla.org/firefox/addon/dark-background-light-text/
Flexible Sidebar
Flexible Sidebar allows to change sidebar width by dragging the handles.
SeaMonkey Vertical Tab Bar
Requires Restart
Tab bar on the side of the window for SeaMonkey.
ACColorPicker
A full featured color selector tool, to work with colors, and easily find the colors you want.
很方便色取色器，可以页面上直接取色，然后再对颜色进行进一步的调整
YouTube Video Player Pop Out
YouTube Video Player Pop Out lets you pop out YouTube videos so that you can watch YouTube videos while you surf.
jsbtn
Tategaki
Requires Restart
Tategaki allows vertical writing-mode on mail compose window.
AMO Browsing for SeaMonkey
This extension makes browsing for extensions easier at addons.mozilla.org. It fixes incorrect information about some extensions being not available for SeaMonkey and adds links to the Add-on Converter where needed.
Restart Application Button
Restart Application Button lets you restart your Firefox and SeaMonkey application by a quick toolbar button click.
GNotifier
Add-on for Thunderbird that replaces the built-in notifications with OS native ones. It supports most Linux Desktop Environments as well as Windows 8.1/10.
GNOMErunner Options
Requires Restart
Allows to customize GNOMErunner theme
Stylish-Custom
Speed Start
Speed Dial & Start Page with flexible layout for fast access to sites via visual bookmarks
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.
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.
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.
