Extensions by Name

Subscribe

Recipients Overview Requires Restart

“Who else got that mail?”

Rated 3 out of 5 stars (10)
202 users

RedirectFilter Requires Restart

Redirect action in the filters.

Rated 4 out of 5 stars (18)
2,384 users

Redmine連携 Requires Restart

コンテキストメニューでRedmineチケットを作成します

Rated 3 out of 5 stars (2)
162 users

ReFwdFormatter Requires Restart

Remove the ">" prefix from quote when you make a reply.
Remove "[" and "]" from the subject when you make a forward.

Rated 4 out of 5 stars (7)
3,541 users

Reinstall Last Installed Add-on

One-click reinstall last installed addon, useful when developping restartless addon

Not yet rated
3 users

Reject Button 1.0 Requires Restart

Annoyed by receiving mails with missing or wrong subjects or meaningless message bodies? Simply reject them with the Reject Button Add-On and enforce proper e-mail etiquette at the cost of just a few friendships.

Rated 3 out of 5 stars (3)
35 users

Reload Disabler Requires Restart

Disable user trigger get message event.

Not yet rated
2 users

ReloadPAC Requires Restart

Workaround for Bug 351163 (Thunderbird bypasses proxy.pac for first connection).

Not yet rated
11 users

Remember Mismatched Domains Requires Restart

The Remember Mismatched Domains extension for Firefox and Thunderbird adds a "Don't warn me again about this certificate for this domain" checkbox to the Domain Mismatch and Expired Certificate warning windows. When selected the domain...

Rated 5 out of 5 stars (66)
2,200 users

ReminderFox Requires Restart

ReminderFox displays and manages lists of reminders and ToDo's. ReminderFox makes sure you remember all of your important dates via easy-to-use lists, alerts, and alarms, right in your browser without the need for a separate calendar program.

Rated 4 out of 5 stars (541)
65,686 users

RemindIt

Help in reminding mails to be answer or sent again. Choose a reminder date for each received or send message that are highlighted in the message list, depending on their status (expired, soon to exprire, to be reminded). Sending a reminder is eased.

Rated 3 out of 5 stars (17)
275 users

RemindMeBot-Reddit

All the great features of /u/RemindMeBot in a quick and easy to use extension!

Rated 4 out of 5 stars (3)
117 users

Remote Developer Tools Server

This addon provides options for starting the developer tools server. It is especially valuable in XULRunner Apps where there is no UI to start the server.

NOTE: This addon is not mandatory in Firefox or Thunderbird, as support is built in.

Not yet rated
19 users

Remove Duplicate Messages Requires Restart

If you have duplicate messages (e.g. from merging folders or downloading messages several times) you can use this tool to find and remove them from the selected folder and its subfolder by rightclicking on a folder and choosing "Remove duplicates..."

Rated 4 out of 5 stars (140)
47,321 users

Remove Duplicate Messages (Alternate) Requires Restart

Search and remove messages which are the same as other messages in your mail folders (referred to as duplicates or dupes).

Rated 4 out of 5 stars (150)
68,662 users

Repeat Borders Requires Restart

Adds darker borders to repeat events to distinguish them from single events.

Rated 4 out of 5 stars (1)
491 users

Reply All Control Requires Restart

Allows you to disable the ability to use Reply All when your email address does not appear in the To: or CC: fields. This usually means you've been BCC'd and Reply All might reveal the sender's sinister plot.

Rated 1 out of 5 stars (2)
5 users

Reply As Original Recipient Requires Restart

Reply with the From: field set to the To: field from the original email.

Rated 5 out of 5 stars (3)
168 users

Reply In Group Requires Restart

Adds "Reply In Group" and "Reply to sender" toolbar buttons to the main window. So it's easier to reply in Usenet...

Rated 5 out of 5 stars (6)
7 users

Reply Monitor Requires Restart

Keep track of your emails and replies (Lightning is required).
Note: the name of this add-on has been changed to Reply Monitor because the previous name is a registered trademark.

Rated 4 out of 5 stars (20)
1,425 users