Privacy and Security

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Mail Merge Requires Restart

Mass Mail and Personal Mail

Rated 5 out of 5 stars (159)
59,887 users
Updated June 13, 2018

Cookies Exterminator

Auto delete cookies, localStorage and IndexedDB objects as soon as they become unused

Rated 5 out of 5 stars (17)
1,318 users
Updated May 30, 2018

Private Tab

Adds private tabs.

Rated 5 out of 5 stars (313)
29,763 users
Updated May 16, 2018

QuickPasswords Requires Restart

Retrieve your Passwords the quick way! Never retype or display your secure passwords on screen anymore - put the password where you need it - the login form or the clipboard.

Now also includes SSO change (multi-domain pw) and Backup + Restore.

Rated 5 out of 5 stars (51)
2,973 users
Updated May 8, 2018

Classic Password Editor Requires Restart

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

Rated 4 out of 5 stars (5)
649 users
Updated April 12, 2018

InfoNotary Configurator for Mozilla Requires Restart

Configures Mozilla for work with certificates issued by InfoNotary Plc.

Rated 3 out of 5 stars (4)
2,418 users
Updated Feb. 14, 2018

Identity Chooser Requires Restart

Identity Chooser helps you to always use the correct identity when composing a new email.

Rated 5 out of 5 stars (91)
7,766 users
Updated Jan. 31, 2018

Remote Content By Folder

Decide whether to allow or block remote content in messages by comparing the names of the folders in which they are located to configured regular expressions.

Rated 5 out of 5 stars (1)
48 users
Updated Dec. 26, 2017

Saved Password Editor Requires Restart

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

Rated 5 out of 5 stars (387)
55,871 users
Updated Oct. 31, 2017

RequestPolicy Continued

Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.

Rated 4 out of 5 stars (27)
4,922 users
Updated Oct. 19, 2017

PrefBar Requires Restart

The all in one toolbar(item). Houses and manages bigger amounts of buttons (Clear Cache, Clear Cookies, ...), Menus (User Agent spoof...) and checkboxes (Javascript, Flash, ...). Extensible from online-database or with self created buttons.

Rated 5 out of 5 stars (42)
8,991 users
Updated Oct. 1, 2017

Bluhell Firewall

Get a faster browsing experience by blocking nasty web resources using Bluhell Firewall, the lightweight Ad-Blocker and Tracking/Privacy Protector.

Rated 4 out of 5 stars (496)
35,573 users
Updated Aug. 14, 2017

Silent Block

Minimum and fast URL blocker.

Rated 4 out of 5 stars (31)
2,483 users
Updated Aug. 7, 2017

RequestPolicy v0.5 Legacy Requires Restart

Be in control of which cross-site requests are allowed. Improve the privacy of your browsing by not letting other sites know your browsing habits. Secure yourself from Cross-Site Request Forgery (CSRF) and other attacks.

Rated 3 out of 5 stars (6)
627 users
Updated July 9, 2017

Vault Shortcut Requires Restart

Adds a toolbar button that opens the LastPass Vault in an external browser.

Not yet rated
12 users
Updated July 7, 2017

Proxy Privacy Ruler

Restrict Proxy by Private Windows, Tabs and Domain List

Rated 5 out of 5 stars (30)
2,970 users
Updated June 6, 2017

clamdrib LIN Requires Restart

"clamdrib LIN" ist wie der Name schon sagt die Weiterentwicklung des Add-on clamdrib, allerdings nur noch für Linux. Sämtliche E-Mails, Feeds und News werden auf Viren und anderes Ungeziefer geprüft und gemeldet. Gelöscht wird hierbei jedoch nichts!

Rated 4 out of 5 stars (4)
601 users
Updated May 27, 2017

Restart Application Button

Restart Application Button lets you restart your Firefox and SeaMonkey application by a quick toolbar button click.

Rated 5 out of 5 stars (2)
529 users
Updated May 7, 2017

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)
3,542 users
Updated May 1, 2017

Integrated Authentication for SeaMonkey Requires Restart

An extension that helps with enabling and managing NTLM (Windows pass-through) and other SPNEGO (integrated authentication) settings.

Not yet rated
16 users
Updated April 28, 2017