.vcs Support Requires Restart
Import and export calendar files in vCalendar (.vcs) format
3e Calendar Requires Restart
Adds support for 3e calendars
A button that lists all the about pages that exist. Some of these pages are also provided as separate buttons.
about:kittens Requires Restart
Baby cats and kittens in the about box...
about:support Requires Restart
A Mozilla Messaging addon to assist in product support.
AboutConfig Requires Restart
Account Manager Toolbar Button Requires Restart
accountex Requires Restart
Export/Import Account Settings.....
Ad Blocker lets you block all ads, tracking & malware from the web world. It is an effective solution to browse the web without offensive and annoying ads you hate to see.
By blocking annoying ads and nosy trackers, adaware ad block nearly doubles your browsing speed! And with the most robust antivirus-level cloud-scanning technology of any ad blocker on the market, you’ll be safe from the latest cyber-threats.
Add Signature Requires Restart
Simply add your signature manually (right mouse click) to your emails
Displays a menu that allows you to open the option/preference window for any add-on that has one.
Add-on Update Checker Requires Restart
Adds Tools menu item to check Add-ons for updates. Includes toolbar icon.
Opens the Add-ons window to perform tasks on your installed Extensions, Themes, Plug-ins and Language packs.
Add-ons Manager Context Menu Requires Restart
Add more items to Add-ons Manager context menu.
Add-ons Toolbar Button Requires Restart
Remembers last selected (hilited) extension/theme/plugin/userstyle in Add-ons Manager. Version 3.0 also includes sorting buttons. Turn off/on the add-on selection list box and/or fine tune behavior via its Options.
Addons Quick Search Requires Restart
Type first letters of add-on name to find them in the list or press Ctrl+↑/↓ to switch between add-ons categories.
Additionally remember and restore last selected item in each list.
Addons Recent Updates Requires Restart
Show more addons recent updates
Address bulk copy （アドレス一括コピー） Requires Restart
Thunderbird は Outlook のようにアドレス全選択からの「一括コピー」ができません。