Privacy and Security

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Paranoia Requires Restart

Check if your emails arrived TLS-encrypted (and which corporations were able to read it nevertheless)

Rated 4 out of 5 stars (9)
1,367 users

Signal Spam Requires Restart

Add simple functions to report spams or phishing to Signal Spam by one click.
The add-on will also alert you if you open a fraudulent e-mail (phishing).

Rated 3 out of 5 stars (50)
10,935 users

TrayHotKey Requires Restart

为Fx5.0 及以上版本提供系统热键(老板键)功能

Rated 5 out of 5 stars (64)
114 users

Export All Certificates Requires Restart

Adds an option to export all root certificates.

Rated 2 out of 5 stars (3)
3 users

View Your Certificates Email Address

Adds a column for displaying the certificates Email address to the "Your Certificates" tab of the Certificate Manager

Rated 5 out of 5 stars (5)
52 users

Fingerfox (SE) Requires Restart

Use MS Fingerprint Reader with Firefox and Thunderbird...

Rated 4 out of 5 stars (12)
4 users

Classic Password Editor Requires Restart

Adds the ability to create and edit entries in the password manager.

Rated 4 out of 5 stars (7)
870 users

Bork Bork Bork! Requires Restart

The Swedish Chef travesty filter and URL blocker. View web pages or mail as spoken by the Swedish Chef like this...

"Zee Svedeesh Cheff trefesty feelter und URL blucker. Feeoo veb peges oor meeel es spukee by zee Svedeesh Cheff leeke-a thees."

Rated 4 out of 5 stars (30)
0 users

Disable about:config Requires Restart

Disable about:config feature of Firefox and Thunderbird.

Rated 1 out of 5 stars (1)
12 users

Purge Events Requires Restart

Purge events from Sunbird and Lightning calendars

Rated 2 out of 5 stars (7)
10 users

POW -- Plain Old Webserver Requires Restart

Turn the web on its head with the Plain Old Webserver (POW), which adds a server to your browser.

Rated 5 out of 5 stars (16)
0 users

Great DANE Requires Restart

Retrieve DANE S/MIME Certificates for Encryption/Signing.

This extension enables users to automatically retrieve S/MIME certificates using the Great DANE Engine (https://github.com/grierforensics/Great-DANE-Engine).

Not yet rated
21 users

KDE5 Wallet password integration Requires Restart

This extension enable passwords and form logins to be stored in KDE5 Wallet

Rated 4 out of 5 stars (29)
10 users

Clear IMAP Local Cache Requires Restart

Clears IMAP local cache on startup.

Rated 5 out of 5 stars (1)
168 users

GProxy Tool Requires Restart

GProxy lets you set and clear GPass local proxy in Firefox and Thunderbird, and do more.

Rated 4 out of 5 stars (8)
1 user

CapsKiller Requires Restart

Caps Killer is a protection against newbies using caps in their mails.

Rated 5 out of 5 stars (2)
6 users

Certificate Patrol Requires Restart

Your browser trusts many certification authorities and intermediate sub-authorities quietly, every time you enter an HTTPS web site. This add-on reveals when certificates are updated, so you can ensure it was a legitimate change.

Rated 4 out of 5 stars (68)
152 users

Spamato4Thunderbird Requires Restart

A multi-faceted, collaborative approach against spam.

Rated 2 out of 5 stars (31)
0 users

No Resource URI Leak

Deny resource:// access to Web content: We fill the hole to defend against fingerprinting. Very important to Firefox privacy. A direct workaround for bugzil.la/863246

Rated 4 out of 5 stars (31)
90 users

SecondOpinion Requires Restart

This extension implements a convenient way to check and upload attachments against VirusTotal.com

Rated 4 out of 5 stars (2)
46 users