Privacy and Security
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GNOME keyring password integration Requires Restart
Extension that allows Firefox and Thunderbird to store passwords in Keyring, Gnome's default password store.
S/MIME Security for Multiple Identities Requires Restart
Adds S/MIME Security configuration to the multiple identities dialog.
Meanwhile this feater has been integrated into Thunderbird 3
Stego Block Requires Restart
Embeds a small secondary, encrypted message in an email, known as a Stego Block.
CallingID Link Advisor Requires Restart
CallingID Link Advisor verifies the links you see in Firefox and Thunderbird are safe before you follow them. When the mouse is placed over any link a risk assessment and the full details of the site owner are displayed, helping you evaluate the...
Disable About Something Requires Restart
Provides ability to disable "about:*" pages by the configuration.
KnujOn Requires Restart
Forwards all emails marked Junk (as attachments) to KnujOn.com (note: they collect email reports on the coldrain.net domain). KnujOn is an organization that works to shut down junk mailers by contacting law enforcement, web hosts, etc..
GuifiProxy Requires Restart
Simple proxy manager
- Change proxy with two clicks
- Import and export proxies lists
- Manually add, delete and edit proxies
- Automatic authentication on proxies (bypass popup with login and password)
- Proxysel replacement
XML Digital Signature Tool Requires Restart
XML Digital Signature Tool is a Firefox add-on for processing Digital Signature in XML documents
(Please read the installation instruction in the "Developer Comments" section before downloading)
Message Level Authentication Requires Restart
Authenticates mail from Message Level Network users, Mail Reputation provided by Sender Score for each message and Anti-Phishing Data from PhishTank. Registration is FREE but not required...
Thunderbird Pedophile Reporter Requires Restart
This add-on was created to allow anyone that is contacted by a suspected pedophile or suspected predator. This will gather the header information and send it to our servers to be reviewed by an investigator.
Disable about:config Requires Restart
Disable about:config feature of Firefox and Thunderbird.
Soapy Requires Restart
Bypasses DNS-based censorship
NOTE: This was created as a SOPA protest in 2012. This does not work anymore for most sites. Use Tor instead.
CapsKiller Requires Restart
Caps Killer is a protection against newbies using caps in their mails.
KDE5 Wallet password integration Requires Restart
This extension enable passwords and form logins to be stored in KDE5 Wallet
To create your own collections, you must have a Mozilla Add-ons account.