Privacy and Security

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Form History Control

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 (72)
30,421 users

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 (27)
29,584 users

Customizations for Adblock Plus No Restart

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

Rated 5 out of 5 stars (11)
23,639 users

Proxy Tool

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 http://ProxyList.co

Rated 4 out of 5 stars (39)
19,139 users

PrefBar

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 (38)
16,867 users

Certificate Patrol

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 (73)
15,680 users

iMEGA No Restart

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 (12)
15,038 users

CookieKeeper No Restart

Extended Cookie Manager - Keep only wanted cookies.

Rated 4 out of 5 stars (34)
12,724 users

NoRedirect

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 (48)
12,241 users

CustomizeGoogle

Note from Mozilla: This add-on has been discontinued. Try Google Minimalist instead.

CustomizeGoogle enhances Google by adding information and removing unwanted information.

Rated 4 out of 5 stars (371)
11,734 users

InfoNotary Configurator for Mozilla

Configures Mozilla for work with certificates issued by InfoNotary Plc.

Rated 5 out of 5 stars (2)
11,025 users

Silent Block

Minimum and fast URL blocker by regular expression.

Rated 5 out of 5 stars (16)
10,600 users

Identity Chooser

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

Rated 5 out of 5 stars (89)
9,141 users

QuickPasswords

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 single sign on change!

Rated 5 out of 5 stars (39)
8,804 users

Remember Passwords

Patches the original Login Manager to allow saving of passwords on forms which otherwise suppress it.

Rated 4 out of 5 stars (59)
7,453 users

MM3 Proxy Switch

In the Firefox Browser (and other Mozilla programs) you can per default configure only the setting for one internet connection. With this Proxy Switch you can manage different configurations and simply switch over between these.

Rated 4 out of 5 stars (36)
7,332 users

Perspectives

Connect securely to https websites by checking certificates with network notaries. See http://www.perspectives-project.org

Rated 4 out of 5 stars (44)
6,568 users

Whois Lookup & Hosting & DNS & Site Flags Firefox

IP Whois Lookup & Website Reviews & Rating. Display country flag indicating website location. Alexa and Norton Antivirus Site Adviser. Supported: GoDaddy, NetworkSolutions, Dotster, 1and1, NameCheap, Register, Yahoo, 123-Reg, FatCow, Enom, FastHosts.

Rated 3 out of 5 stars (9)
6,128 users

URLFilter No Restart

Block advertisement and access to adult sites

Rated 4 out of 5 stars (13)
6,000 users

CS Lite Mod

CS Lite allows you to set the permission of the cookie every domain from toolbar.

Rated 5 out of 5 stars (37)
5,826 users