To try the thousands of add-ons available here, download Mozilla Firefox, a fast, free way to surf the Web!Close
Welcome to Firefox Add-ons.
Choose from thousands of extra features and styles to make Firefox your own.Close
- Any Firefox
- Firefox 44.0
- Firefox 40.0
- Firefox 27.0
- Firefox 26.0
- Firefox 23.0
- Firefox 21.0
- Firefox 19.0
- Firefox 11.0
- Firefox 3.6
106 matching results
Search Results for tag "security"
NoScript Security Suite Featured
The best security you can get in a web browser!
Allow active content to run only from sites you trust, and protect yourself against XSS and Clickjacking attacks.
LastPass Password Manager Featured
LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.
Make the web faster, more private, and more secure.
Remove or manage a new and uncommon kind of cookies, better known as LSO's.The BetterPrivacy safeguard offers various ways to handle Flash-cookies set by Google, YouTube, Ebay and others...
Latest updates: See bottom link 'version history'!
The quickest way to find out if your computer is infected!
Bitdefender QuickScan is a very fast antivirus scanner, able to determine in a matter of seconds if a system is infected with malware.
More on http://quickscan.bitdefender.com/faq
BlockSite is an extension, which automagically blocks websites of your choice. Additionally, this extension will disable all hyperlinks to these websites, by just displaying the link text without the clicking functionality.
Tamper Data Featured
Use tamperdata to view and modify HTTP/HTTPS headers and post parameters...
DuckDuckGo is the search engine that doesn't track you. We also have smarter answers and less clutter. This extension adds DuckDuckGo (HTTPS / SSL version) to the search bar. For more features, see the DuckDuckGo Plus add-on. Enjoy!
Simple security audit / Penetration test tool.
This addon blocks sites containing pornographic materials.
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.
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.
Blocks ads, popups, cookie trackers and spyware on the web, including ads on Facebook, Gmail, Youtube, Google Search and popular news sites. Works faster than competing addons. Extremely simple and light, so even your grandma can deal with AdvertBan
It adds a tab to the Page Info dialog box, which shows the cookies belonging to the current page.
A simple add-on to provide a modal dialog when the user clicks on a password input field that will transmit insecurely over a non-HTTPS connection. Designed to offer some protection against Man-In-The-Middle attacks like SSL Strip.
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.
Complete control over online tracking using multiple methods, including cookie blocking, persistent opt-out cookies, Flash and HTML5 control, and Do Not Track signals. Visit us to learn more: http://www.privacychoice.org
Simple proxy manager
- Change proxy with two clicks
- Import and export proxies lists
- Manually add, delete and edit proxies
- Automatic authentication on proxies (bypass popup with login and password)
- Proxysel replacement
Right-click on any link and scan the target with VirusTotal, scan your downloads with VirusTotal before storing them in your PC, free and easy. More information at: https://www.virustotal.com/documentation/browser-addons/mozilla-firefox/
Protection against hackers and threats: This addon is different from your antivirus and firewall, and automatically protects you against various threats that may represent some websites while browsing on the internet ...