Privacy and Security

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WorldIP - Geo Add-on with Security Features Requires Restart

Professional Geo Add-on with security features and advanced network tools. Anti-phishing. Protection against DNS spoofing and fake sites. All DNS records for domain. The real location of web server, country flag, extended information about datacenter

Rated 5 out of 5 stars (116)
27,631 users

Form History Control Requires Restart

Manage form history entries (search, edit, cleanup, export/import) and easy text formfiller.

Auto-save text entered in any form while typing to allow fast recovery when disaster strikes.

Control for which webpage form history is saved or not.

Rated 5 out of 5 stars (94)
23,421 users

FoxyProxy Basic Requires Restart

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)
21,632 users

Google Privacy Requires Restart

Make some popular websites respect your privacy settings.
Please see the known issues below!

Rated 5 out of 5 stars (34)
21,574 users

iMEGA

This add-on is intended to ease the life of the regular MEGA user.

Please note this extension is NOT the official from Mega, for the real one please go to: https://mega.nz/#firefox

Rated 5 out of 5 stars (17)
20,400 users

Fox Web Security Requires Restart

Protection from adult content (parental control) and from dangerous sites.
Entrust protection for yourself and your children to professionals!

Rated 5 out of 5 stars (29)
18,593 users

AdNauseam

Fight back against advertising surveillance

Rated 4 out of 5 stars (34)
16,551 users

NoRedirect Requires Restart

NoRedirect lets the user take control of HTTP redirects. It can be used to interdict an ISP's DNS search redirection hijacks, preview/screen "shortened" URLs (e.g., TinyURL), stop the annoying redirection of "smart" error pages, etc.

Rated 4 out of 5 stars (53)
15,836 users

about:addons-memory 2016

Adds a new page that shows add-on memory usage

Rated 5 out of 5 stars (32)
14,728 users

CookieKeeper

Extended Cookie Manager - Keep only wanted cookies.

Rated 4 out of 5 stars (66)
14,003 users

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 (41)
13,345 users

Customizations for Adblock Plus

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

Rated 5 out of 5 stars (13)
11,496 users

Redirect Bypasser

Avoid redirects and has direct access to the sites you want to visit.

Rated 4 out of 5 stars (43)
10,492 users

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 (77)
10,330 users

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 (89)
9,063 users

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 (13)
8,687 users

Proxy Privacy Ruler

Restrict Proxy by Private Windows, Tabs and Domain List

Rated 5 out of 5 stars (21)
8,558 users

InfoNotary Configurator for Mozilla Requires Restart

Configures Mozilla for work with certificates issued by InfoNotary Plc.

Rated 5 out of 5 stars (2)
7,287 users

No Resource URI Leak

Deny resource:// access to Web content: We fill the hole to defend against fingerprinting. Very important to Firefox privacy. A direct workaround for bugzil.la/863246

Rated 4 out of 5 stars (21)
6,576 users

Silent Block

Minimum and fast URL blocker.

Rated 4 out of 5 stars (26)
5,595 users