Top-Rated Extensions

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ICS Inspector Requires Restart

This extension provides many debugging options related to calendar development. This includes showing the ics data for an event or calendar, evaluating javascript on an event or calendar, and some menu options for debugging.

Rated 4 out of 5 stars (1)
5 users

Preferential (New GUID) Requires Restart

Advanced preferences manager for Mozilla-based...

Rated 3 out of 5 stars (5)
0 users

Spamato4Thunderbird Requires Restart

A multi-faceted, collaborative approach against spam.

Rated 2 out of 5 stars (31)
0 users

GmailOutOfOffice Requires Restart

Out of Office for Gmail

This add-on allows you to set an out of office auto-responder in your gmail account. It adds a button in the toolbar customization list.

Rated 3 out of 5 stars (2)
5 users

Lightning Reminder Left Buttons Requires Restart

Tired to mistakenly press that "Dismiss All" button? Move the Lightining Reminder "Snooze all for" and "Dismiss All" buttons to the LEFT!
... and from version 2.0 you can keep them on the RIGHT, but swapped!

Rated 3 out of 5 stars (2)
10 users

OpenFolder

This add-on makes it easy to open folders on a file server.

In order to use the add-on, you need to install two things: the add-on and the linked app.
You can download the linked app from the following website.

https://openfolder.net/

Rated 3 out of 5 stars (2)
135 users

Night and Day Dynamic

A theme that switches between sun and moon based on time of day.

This is the canonical example dynamic theme published by Mozilla: https://github.com/mdn/webextensions-examples/tree/master/dynamic-theme

Rated 3 out of 5 stars (2)
1,299 users

Slack - Quick Access

Quick Access to Slack in a new tab with just one click on a simple, stylish icon button on your Spaces toolbar.

Rated 3 out of 5 stars (2)
72 users

mouseless Requires Restart

I did my best so that operation might be possible with a keyboard...

Rated 2 out of 5 stars (7)
0 users

Classic Pop-up Alerts

This addon returns the old view of the pop-up notifications, as in Firefox 4.0 - 43.0

Rated 3 out of 5 stars (2)
1 user

Large Fonts Requires Restart

This add-on enables you to change the font size of the plain text editor of Thunderbird.

Rated 3 out of 5 stars (2)
1 user

gTimer Requires Restart

gTimer предназначен для подсчёта времени, проводимого за работой в Firefox.

Rated 3 out of 5 stars (2)
1 user

eelpout Requires Restart

The anti-phish. An informative phishing detection...

Rated 3 out of 5 stars (2)
0 users

Email Addresses in Message Headers Requires Restart

Shows email addresses in message headers, including those of contacts, and provides control over message header presentation.

Rated 3 out of 5 stars (2)
7 users

Folder Selection (Thunderbird) Requires Restart

A popup window for selecting any folder when the folder pane is hidden...

Rated 3 out of 5 stars (2)
0 users

Google Mail Tab for Thunderbird Requires Restart

Open Google Mail in a new tab inside of Mozilla Thunderbird

Rated 3 out of 5 stars (2)
0 users

Find Buttons

Adds buttons to open and manage the find bar.

Rated 3 out of 5 stars (2)
0 users

Follow Reply Requires Restart

Find the replying or the following mail you wrote by clicking the arrow icon in the subject column of the thread panel

Rated 2 out of 5 stars (10)
8 users

SmartProxy

SmartProxy is a smart automatic proxy switcher that will automatically enable/disable proxy for the sites you visit, based on customizable rules.

Rated 2 out of 5 stars (3)
197 users

RSS Dashboard Requires Restart

This addons gives you a dashboard-style view of your RSS feeds, like iGoogle or Netvibes (widget view). This is an experiment, so it is still very rough. Right now, consider this as a proof-of-concept rather than a real addon.

Rated 3 out of 5 stars (3)
0 users