Privacy and Security

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Modify HTTP Response No Restart

Rewrite http response body using search & replace patterns

Rated 5 out of 5 stars (1)
286 users
Updated May 2, 2016

uBlock Origin No Restart

Finally, an efficient blocker. Easy on CPU and memory.

Rated 5 out of 5 stars (474)
1,019,868 users
Updated May 2, 2016

about:addons-memory 2016 No Restart

Adds a new page that shows add-on memory usage

Rated 5 out of 5 stars (9)
1,536 users
Updated May 1, 2016

CookieKeeper No Restart

Extended Cookie Manager - Keep only wanted cookies.

Rated 4 out of 5 stars (55)
15,896 users
Updated May 1, 2016

Adblock Plus No Restart Featured

Blocks annoying video ads on YouTube, Facebook ads, banners and much more.

Adblock Plus blocks all annoying ads, and supports websites by not blocking unobtrusive ads by default (configurable).

Rated 5 out of 5 stars (4,801)
20,965,371 users
Updated April 28, 2016

Mail Merge

Mass Mail and Personal Mail

Rated 5 out of 5 stars (143)
55,635 users
Updated April 19, 2016

clamdrib LIN

"clamdrib LIN" ist wie der Name schon sagt die Weiterentwicklung des Add-on clamdrib, allerdings nur noch für Linux. Sämtliche E-Mails, Feeds und News werden auf Viren und anderes Ungeziefer geprüft und gemeldet. Gelöscht wird hierbei jedoch nichts!

Rated 1 out of 5 stars (1)
455 users
Updated April 18, 2016

fairBlock No Restart

Un bloqueur de publicité équitable. Préservez le web gratuit en choisissant sur quels sites vous bloquez la publicité.

Rated 5 out of 5 stars (2)
51 users
Updated April 16, 2016

URLFilter No Restart

Block advertisement and access to adult sites

Rated 4 out of 5 stars (14)
4,721 users
Updated April 10, 2016

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.

Rated 5 out of 5 stars (1,568)
2,263,491 users
Updated April 6, 2016

Fox Web Security

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 (15)
30,755 users
Updated April 5, 2016

Gmail Mail Sidebar No Restart

Gmail Mail Sidebar brings Gmail right into your Firefox Sidebar.

Rated 5 out of 5 stars (2)
13,189 users
Updated March 26, 2016

Google Cache No Restart

Google Cache lets you visit retrieve the web page from Google Web Cache when the site is offline.

Not yet rated
187 users
Updated March 25, 2016

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 SSO change (multi-domain pw) and Backup + Restore.

Rated 5 out of 5 stars (48)
6,577 users
Updated March 21, 2016

TotalSpoof No Restart

Set most common Firefox user-agent and window.navigator values.

Rated 3 out of 5 stars (3)
837 users
Updated March 21, 2016

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 (81)
25,876 users
Updated March 21, 2016

Native AdBlocker No Restart

한국 웹의 광고를 효율적으로 차단합니다.

Rated 5 out of 5 stars (4)
340 users
Updated March 21, 2016

Restart Application Button No Restart

Restart Application Button lets you restart your Firefox and SeaMonkey application by a quick toolbar button click.

Rated 5 out of 5 stars (1)
425 users
Updated March 11, 2016

LastPass Password Manager

LastPass, an award-winning password manager, saves your passwords and gives you secure access from every computer and mobile device.

Rated 4 out of 5 stars (1,337)
758,340 users
Updated March 8, 2016

Redirect Bypasser No Restart

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

Rated 4 out of 5 stars (31)
10,986 users
Updated February 21, 2016