Privacy and Security


Proxy Tool Requires Restart

Proxy Tool - Powerful, yet User-friendly proxy tool to manage your proxies and anonymity needs, including: 46M+ user agents (world's largest), 10 different spoofed HTTP referrers, auto-proxy rotation, plus many more. Developed by

Rated 3 out of 5 stars (47)
45,128 users

Close Proxy Authentication Requires Restart

Provides transparent proxy authentication on your enterprise network.
Close authentication dialog if login on proxy failed.

Rated 5 out of 5 stars (5)
2,770 users

Ebank2 Plugin Requires Restart

K&H e-bank és electra belépés és tranzakció aláírás bővítmény / K&H ebank and electra login and transaction singing extension

Rated 2 out of 5 stars (31)
18,155 users


Block advertisement and access to adult sites

Rated 4 out of 5 stars (23)
1,563 users

RefControl Requires Restart

Control what gets sent as the HTTP Referer on a per-site basis.

Rated 4 out of 5 stars (180)
46,217 users

RequestPolicy 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 4 out of 5 stars (214)
14,919 users

Silent Block

Minimum and fast URL blocker.

Rated 4 out of 5 stars (31)
3,010 users

TheRealURL Requires Restart

Get URL information: expand short URLs, get title and content type information without visiting the site.

UPDATE, AUG 2013: THIS EXTENSION IS NO LONGER SUPPORTED. The source is open - if you wish to take on the development, you're welcome.

Rated 3 out of 5 stars (7)
214 users

Whois & Flags Firefox & Websites Popularity Rating Requires Restart

Display Country Flag indicating Website Physical Location (Country, State, City). Website Popularity (Live Visitor Statistics). Shows how many users are visiting any World Website per day. Website IP IPv6 Addresses, DNS, Hosting. IP Whois Lookup

Rated 4 out of 5 stars (22)
1,039 users

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)
627 users

Expiry Canary Requires Restart

An extension to warn about nearly-expired website SSL certificates.

This simple addon probably needs updating for the upcoming changes in Firefox; however, I'm afraid I don't have time to learn the new stuff. If you can maintain it, contact me!

Rated 5 out of 5 stars (6)
69 users

Trueblock Plus Requires Restart

Trueblock Plus is a fork of the Adblock Plus extension for blocking unwanted advertisements on the web. This fork provides the exact same features as Adblock plus, with the unpopular, unwanted "acceptable ads" (non-)feature turned off by default.

Rated 4 out of 5 stars (44)
340 users

Channel Guard Requires Restart

Channelguard disables plugins and protocol handlers to ensure maximum security against side-channel attack.

Rated 4 out of 5 stars (2)
27 users

Modify HTTP Response

Rewrite http response body using search & replace patterns

Rated 4 out of 5 stars (7)
689 users

Cache Offline Alert Restorer Requires Restart

Restores the alert when a website asks to store data for offline use.

Rated 5 out of 5 stars (1)
30 users

Native AdBlocker

한국 웹의 광고를 효율적으로 차단합니다.

Rated 5 out of 5 stars (9)
149 users

ReloadPAC Requires Restart

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

Not yet rated
8 users

Conspiracy Requires Restart

Shows flag/country of involved Certification Authorities (CAs) for secured pages.

Rated 5 out of 5 stars (3)
143 users

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.

Not yet rated
14 users

Export All Certificates Requires Restart

Adds an option to export all root certificates.

Rated 2 out of 5 stars (3)
373 users