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Lightning Nên dùng

Organize your schedule and life's important events in a calendar that's fully integrated with your Thunderbird email. Manage multiple calendars, create your daily to do list, invite friends to events, and subscribe to public calendars.

Rated 3 out of 5 stars (1.884)
13.865 lượt tải hàng tuần13.865 lượt tải hàng tuần

µBlock No Restart

Cuối cùng, đã có một công cụ chặn quảng cáo hiệu quả, tiêu tốn ít CPU và bộ nhớ.

Rated 4 out of 5 stars (215)
12.848 lượt tải hàng tuần12.848 lượt tải hàng tuần

Session Manager No Restart

Session Manager saves and restores the state of all or some windows - either when you want it or automatically at startup and after crashes. It can also automatically save the state of open windows individually.

Rated 5 out of 5 stars (436)
3.592 lượt tải hàng tuần3.592 lượt tải hàng tuần

Copy Plain Text 2

Copies text without formatting

Rated 5 out of 5 stars (64)
2.364 lượt tải hàng tuần2.364 lượt tải hàng tuần


Synchronizes contacts & groups between Thunderbird or SeaMonkey and Google Contacts. Imports Facebook friends, contacts you follow on Twitter, and more.

Rated 4 out of 5 stars (205)
1.885 lượt tải hàng tuần1.885 lượt tải hàng tuần

Add-ons Manager Context Menu

Add more items to Add-ons Manager context menu.

Rated 5 out of 5 stars (32)
1.468 lượt tải hàng tuần1.468 lượt tải hàng tuần

UnMHT No Restart

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.

Rated 5 out of 5 stars (220)
1.436 lượt tải hàng tuần1.436 lượt tải hàng tuần


A clean, easy to use and highly extensible Internet Relay Chat (IRC) client.

Rated 4 out of 5 stars (126)
1.370 lượt tải hàng tuần1.370 lượt tải hàng tuần


A simple note-taking extension.

Rated 5 out of 5 stars (169)
1.312 lượt tải hàng tuần1.312 lượt tải hàng tuần

Copy As Plain Text

Removes formatting from copied text.

Rated 4 out of 5 stars (56)
789 lượt tải hàng tuần789 lượt tải hàng tuần

Filter Uploader for Adblock Plus

DOES NOT BLOCK ADS! Don't install this add-on if you don't know what 'uploading' means!

This add-on Uploads the filters from your Adblock Plus installation to a FTP, HTTP, HTTPS server...

Rated 3 out of 5 stars (45)
716 lượt tải hàng tuần716 lượt tải hàng tuần

Snap Links Plus

Select a number of links with a rectangle and open them all in new tabs in the same or a new window(s), download them or copy them to the clipboard. You can also lasso checkboxes to quickly check or uncheck them.

Rated 4 out of 5 stars (97)
678 lượt tải hàng tuần678 lượt tải hàng tuần

Send Later

True "Send Later" functionality to schedule the time for sending an email.

Rated 5 out of 5 stars (41)
632 lượt tải hàng tuần632 lượt tải hàng tuần

Extension Auto-Installer No Restart

Extension Auto-Installer is a helper for Firefox/SeaMonkey/Thunderbird extension developers: it allows automatically adding or updating browser extensions, e.g. via command line tools. This makes testing your changes easier.

Rated 5 out of 5 stars (15)
627 lượt tải hàng tuần627 lượt tải hàng tuần

FoxClocks No Restart

FoxClocks shows times around the world - or just your local time - at the bottom of your browser. It deals with daylight saving time so you don't have to.

Rated 4 out of 5 stars (314)
577 lượt tải hàng tuần577 lượt tải hàng tuần

AutoPager Fixed

AutoPager Fixed is a working version of AutoPager extension for Firefox 36+ (non-E10s mode) to autoload the next page(s) when you scroll pages.


Rated 4 out of 5 stars (47)
427 lượt tải hàng tuần427 lượt tải hàng tuần

Mouse Gestures Suite

Mouse gestures for SeaMonkey & Firefox: navigate & execute commands using mouse gestures (with single mouse button) and rocker gestures (by pressing 2 mouse buttons). Also: scroll wheel navigation, page scrolling, tab scrolling.

Rated 5 out of 5 stars (25)
357 lượt tải hàng tuần357 lượt tải hàng tuần

Mail Redirect

Allow to redirect (a.k.a. "remail") mail messages to other recipients.

Rated 4 out of 5 stars (125)
355 lượt tải hàng tuần355 lượt tải hàng tuần

Tab notifier

Enables desktop notifications like in Chrome (e.g. Gmail, and, if the site doesn't support them, it can notify new messages or updates detecting changes of the title (e.g. Hotmail, Yahoo, Facebook, Twitter). Even if the browser is minimized!

Rated 4 out of 5 stars (40)
326 lượt tải hàng tuần326 lượt tải hàng tuần

AutoCopy 2

Copies selected text to the clipboard automatically.

Rated 5 out of 5 stars (57)
322 lượt tải hàng tuần322 lượt tải hàng tuần