Privacy & Security

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Custom User-Agent (Revived) Compatible with Firefox 57+

Add a custom useragent string for desired URLs or domains.

Rated 4 out of 5 stars (3)
224 users

Tamper Data Icon Redux Requires Restart

Open Tamper Data with a toolbar icon, an item in the Tools menu, or from an item in the Web Developer menu in 6+.

Rated 4 out of 5 stars (3)
3,775 users

Password Toggler - view input passwords Compatible with Firefox 57+

Adds button to show/hide password in input elements

Rated 4 out of 5 stars (3)
214 users

Web Storage Viewer Requires Restart

View and manage the tracking data stored by websites on your system. This data is known by several different names: Web Storage, DOM Storage, HTML5 Storage, Session Storage and Local Storage.

Rated 4 out of 5 stars (3)
529 users

Whatsapp Web Hide Media

Hide images on web.whatsapp.com an reveal only mouse over.

Rated 4 out of 5 stars (3)
38 users

SafeHistory Requires Restart

Restricts the marking of visited links on the basis of the originating document, defending against web privacy attacks that remote sites can use to determine your browser history at other sites. A link on a.com pointing at b.com will only be...

Rated 3 out of 5 stars (11)
4 users

HideMyAss - Free Web Proxy

Use free web proxy to surf anonymously online, hide your IP address, and protect your online identity.

Rated 4 out of 5 stars (3)
898 users

ShowIP Requires Restart

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 (277)
25,876 users

No-Script Suite Lite (revived) Compatible with Firefox 57+

Blocks scripts (and more) on untrusted websites

Rated 4 out of 5 stars (3)
1,157 users

URL Manager

Adds or removes parameters to/from URLs.

Rated 4 out of 5 stars (3)
26 users

View Frames Requires Restart

View Frames in a tree in Page Info.

Rated 4 out of 5 stars (3)
314 users

Passwordstate Password Manager

Passwordstate For Firefox is a free form filler extension that obtains credentials from Passwordstate.

Rated 4 out of 5 stars (3)
172 users

Cookie Import/Export

Import and export your cookies and cookie permissions

Rated 4 out of 5 stars (3)
2,409 users

The Next Task NewTab

The ultimate Productivity & ToDo list add-on,designed to personalize your browser experience while search the web from your NewTab

Rated 4 out of 5 stars (3)
935 users

No More Blogger Redirect

This is a very simple addon that disables the automatic loading of the regional version of blogs hosted in Blogger depending on the country's origin of the user. Sites like http://diegocg.blogspot.com.es will become http://diegocg.blogspot.com

Rated 4 out of 5 stars (3)
185 users

No Google Link Rewrite (WebExtensions) Compatible with Firefox 57+

No Google Link Rewrite add-on.

Rated 4 out of 5 stars (3)
108 users

Disable HTTP Referer at Startup Requires Restart

Disable Send HTTP Referer at Startup everytime.

Rated 4 out of 5 stars (3)
180 users

Interest-based advertising opt-out (by Google) Requires Restart

Opt out of Google's interest-based ads as you browse the web with Firefox.

Rated 4 out of 5 stars (3)
5,004 users

Disable Speculative Pre-connections

Hide in the forest, with speculative pre-connections cleanly disabled.

Rated 4 out of 5 stars (3)
498 users

SSO Tracer Requires Restart

A debugger for SSO by filtering HTML requests, flagging authentication messages and displaying SAML messages.

Rated 4 out of 5 stars (3)
2,952 users