Privacy and Security

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Adblock Plus No Restart Featured

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Rated 5 out of 5 stars (4,798)
1,139,784 weekly downloads

Adblock Edge No Restart

Adblock Edge is a fork of the Adblock Plus version 2.1.2 extension for blocking advertisements on the web, without sponsored ads whitelist.

**This addon has been discontinued**

Rated 5 out of 5 stars (307)
19,761 weekly downloads

Bluhell Firewall No Restart

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

Rated 5 out of 5 stars (268)
11,825 weekly downloads

Password Exporter No Restart

This extension allows you to export your saved passwords and disabled login hosts using XML or CSV files that can be imported later.

Rated 4 out of 5 stars (335)
9,000 weekly downloads

Enigmail Featured

OpenPGP message encryption and authentication for Thunderbird and SeaMonkey.

Rated 4 out of 5 stars (188)
7,887 weekly downloads

Confirm-Address

Confirm E-mail address before sending mail

Rated 4 out of 5 stars (30)
5,521 weekly downloads

Mail Merge Featured

Mass Mail and Personal Mail

Rated 5 out of 5 stars (141)
2,892 weekly downloads

Saved Password Editor

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

Rated 5 out of 5 stars (222)
2,624 weekly downloads

FoxyProxy Basic

FoxyProxy Basic is a simple on/off proxy switcher. More advanced features and configuration options are offered by FoxyProxy Standard.

Rated 4 out of 5 stars (31)
2,276 weekly downloads

Master Password+

Various enhancements for build-in "master password" (MP)
-Locks master security device on demand or after specified time
-Prompts for MP on browser startup
-Suppresses all or duplicate MP prompts
-Locks up entire application or individual windows

Rated 4 out of 5 stars (123)
1,542 weekly downloads

CookieKeeper No Restart

Extended Cookie Manager - Keep only wanted cookies.

Rated 4 out of 5 stars (55)
1,458 weekly downloads

Website Blocker

All the bugs have been fixed!
Everyone needs this add-on!
Block websites you don't want the browser to get into.
Block by a whole domain name or a specific address.
Block until further notice or until a certain date.

Rated 2 out of 5 stars (8)
1,448 weekly downloads

Check and Send

Check the message contents and addresses before you send the message...

Rated 4 out of 5 stars (28)
1,424 weekly downloads

Pan No Restart

Block ads and manage proxy.

Rated 5 out of 5 stars (82)
1,274 weekly downloads

StartupMaster No Restart

Asks for the master password at startup (fixes multiple password prompt)

Rated 4 out of 5 stars (219)
927 weekly downloads

ShowIP

Show the IP address of the current page in the status bar. It also allows querying custom information services by IP (right click) and see location and avaiable vouchers for shopping sites. Additionally you can copy the IP address to the clipboard.

Rated 3 out of 5 stars (285)
870 weekly downloads

Silent Block No Restart

Minimum and fast URL blocker.

Rated 5 out of 5 stars (16)
861 weekly downloads

Customizations for Adblock Plus No Restart

This extension provides various customization options for the Adblock Plus user interface.

Rated 5 out of 5 stars (12)
766 weekly downloads

GProxy Plus

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

Not yet rated
649 weekly downloads

GProxy Tool

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

Rated 4 out of 5 stars (8)
590 weekly downloads