Firefox: 55 Add-Ons To Increase Your Security And Privacy

Martin Brinkmann
Feb 12, 2009
Updated • Mar 20, 2013
Firefox, Firefox add-ons

One of the greatest strengths of the Firefox web browser is its extensibility. This does not only include new features but also security enhancements that make the web browser more secure and less prone for attacks and privacy breaches.

The following list will contain Firefox add-ons that protect the user from various threats on the Internet. They have been divided into the categories Browsing, Cache, Cookies, Identity & Privacy, Passwords and Misc. Each link will lead to the Mozilla homepage that contains additional information and download possibilities.

All but one add-on should be compatible with the latest version of Firefox 3. Some of them are experimental add-ons that require an account at the Mozilla website before they can be downloaded and installed.


Blocksite - A customizable blacklist that blocks access to specific sites. It will also disable all hyperlinks pointing to those websites.

Bookmark Permissions - Stores five permissions (like enabled Javascript or Plugins) for every bookmark.

Customize Google - Customizes Google by adding and removing information automatically.

FlashBlock - Blocks all Macromedia Flash content from being loaded.

FoxFilter - Filters websites based on keywords. Ideal for parents who want to have more control over what websites are viewed by their children.

Ghostery - Displays information about tracking scripts on websites.

IDND - Informs the user if the domain name is an International domain name.

NoScript - Disables scripts automatically on the Internet with the option to enable them individually.

PhishTank - Adds extra phishing protection to Firefox.

Public Fox - Lock down add-ons, browser settings and downloads.

Redirect Remover - Removes redirects from links and images.

Secure Login - A one click login button that is similar to Opera's Wand functionality.

firefox login

Show IP - Displays the IP of the current website in the browser.


Cache Status - Cache Management from the Firefox status bar.

Passive Cache - Access the contents of a site without visiting it directly.

Safe Cache (FF2) - Segments the Firefox cache based on the source of the documents which defends against techniques to determine if a user visited another domain.


Add n Edit Cookies - Makes it possible to edit cookies.

Better Privacy - Adds Flash Cookie handling to Firefox.

Cookie Monster - Provides cookie management capabilities to allow and disallow cookies to be set on specific websites.

Cookie Swap - Use multiple cookies on one website.

CS Lite - Manage cookie permissions.

Identity and Privacy:

Adblock Plus - blocks advertisement on the Internet.

FoxyProxy - An advanced proxy management tool for the Firefox browser.

Goolash - The extension makes sure that a user is always logged out of Google accounts during Google search.

History Block - Can block sites from appearing in the browser's history.

MailCatch - A Firefox add-on to make use of a disposable email service that can be used to create emails to use on the Internet.

No Referer - Can block the referrer when accessing specific sites.

Private Browsing - Hides surfing trails.

Quick Proxy - Switch proxies on and off with one click.

Random User Agent - Replaces the default Firefox user agent with a random one.

RefSpoof - Allows to change the referrer on the fly.

Spam Advert - Another temporary email service that can be used in Firefox.

Stealther - Privacy browsing for Firefox versions that do not provide that feature.

Temporary Inbox - Another temporary email service that can be used to create disposable emails on the fly.

Torbutton - Adds a button to Firefox to enable or disable the anonymity software Tor.

Track me not - Protects the user against search data profiling.


Trashmail - Another one click temporary email creation service.


Last Pass - A secure password manager and form filler.

Mass Password Reset - Makes it easier to reset multiple passwords at once.

Secure Password - Secure password generation with the click of a button.

Show Passwords - Displays the passwords in web forms without asterisks.

Misc Extensions:

Controle de Scripts - Advanced settings for Javascript behavior in Firefox.

Febe - Firefox Environment Backup Extension can backup various Firefox modules such as extensions, options or themes.

Javascript Deobfuscator - Will inform the user about Javascript that gets loaded and executed on a website.

Javascript Options - A lite version of NoScript.

JS View - View the source code of Javascript files.

Long URL Please - Replaces short urls with their real destinations.

Quick Java - Quickly turn on or off Java with the click of a button.

Malware Search - Has been designed for HiJack This users who need to search for entries on the Internet.

Panic Button - Will perform an action like hiding all windows when pressed.

Remember Mismatched Domains - Adds a "Don't warn me again about this certificate for this domain" checkbox to the Domain Mismatch and Expired Certificate warning windows.

US Homeland Security Level - Displays the current US Homeland Security Threat Level in the web browser.

View Dependencies - Will display a list of all objects that have been loaded on the current website.

Yes Script - Can block specific scripts on a website. Basically the opposite of how NoScript handles it.


Tutorials & Tips

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  1. rono_ceh said on June 24, 2010 at 7:42 pm

    You can also try click & clean & netcraft

  2. Super Rat said on July 30, 2009 at 1:59 pm

    I agree, download latest firefox (3.5.1 at time of writing)

    Then go to add ons (just gooogle firefox add ons) and download:
    NoScript (superb and you can block google analytics with it, as well as anything else)
    Bad Privacy (deletes all those super cookies and flash lso’s that doing a normal delete all and cleaning out ya temp files won’t get rid off, nor will even a dedicated program like cc cleaner etc as good as that is, so it’s essential in my own opinion)
    Ad Block Plus (fantastic lil program)

    And others that are good but in no means security related are:
    Dictionary (your own language of choice of course)

    Tab Mix Plus (for some reason, Mozillas addon page does not have compatitble version with the latest firefox :S wierd, but below is a link to the addonn authors page which goes to a dev link which is totally 100% compatible :)

    Colourful tabs (pretty much self explanatory lol)

    Hope that helps, adios
    Super Rat

    PS: actually stop using google is another opinion (also entirely mine lol)
    I myself now very happily use Bing
    I find there page fresher and nicer to use, its easier to say lol, and most importantly results are easily on a par if not far better IMO, especially image search IMO (please note we do not need a load of google lovers telling me im wrong, i have gone to the trouble of explaining this in my OWWWWWN opinion, after years of using google and months of happily using Bing.

    Be daring, use something different and see for yourself!
    Doesn’t have to be Bing that was an example, many others out there…

    Also if you use firefox and you want an add on to add Bing as the default search engine in the in built search engine, please go to

    But the point is they don’t at present where as the evil google blatantly do!

  3. Jonny said on February 13, 2009 at 5:41 pm

    SSL Blacklist is another good one – It’s for spotting potentially insecure certificates on sites.

  4. rickxs said on February 13, 2009 at 1:16 am

    Alain, you want to view the cache or save something from there ? i use cache viewer

  5. sal_er said on February 13, 2009 at 12:09 am

    Password section: wondering why you haven’t mentioned Sxipper which is one of the best to manage passwords. Autofilling registration forms is also a great feature.

  6. Zia said on February 12, 2009 at 3:46 pm
  7. King said on February 12, 2009 at 7:05 pm

    I prefer CookieCuller to the cookie-related addons here. It allows you to preserve only the cookies you want from a site. I was removing cookies with a script in FF2.x but it was per site so I had no control over specific cookies within a single site. CookieCuller lets me do that.

    FlagFox is a winner, too.

    Great list.

  8. pwdhash said on February 12, 2009 at 5:20 pm

    pwdhash is great for generating site-specific passwords without having to remember them all. works as an IE plugin as well.

  9. RogueSpear said on February 12, 2009 at 4:30 pm

    NoScript, when properly configured and used, has got to be the most valuable piece of software outside of your kernel and Firefox itself.

    Outstanding list. There must be at least two dozen titles I’ve never even heard of in there.

  10. Alain said on February 12, 2009 at 4:18 pm

    How can I make Firefox to open it’s own cache when offline or when a website is not available? It’s not doing that.
    Does it need an add-on or I can do it through an option that I’m not seeing?

  11. KTecNet® said on February 12, 2009 at 2:51 pm

    Nice Work !
    […] escreveu este artigo muito bom contendo uma lista com 55 plugins para segurança no FireFox.

    Fonte .: – firefox 55 add ons to increase your security and privacy

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