All Time Favorits

by Jans

8 Add-ons in this Collection

Adblock Plus by Wladimir Palant, Eyeo

Rated 5 out of 5 stars 6,436 reviews

13,626,187 users

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).

Ghostery by Ghostery

Rated 4 out of 5 stars 1,886 reviews

1,047,948 users

See who’s tracking you online and protect your privacy with Ghostery.

United States English Spellchecker by jooliaan

Rated 4 out of 5 stars 179 reviews

367,892 users

United States English Spellchecker for Firefox, Thunderbird and SeaMonkey by Kevin Atkinson and Geoff Kuenning.

To enable, right-click in a multi-line text box, select "Languages", then "English (United States)".

Update Scanner by sneakypete81

Rated 4 out of 5 stars 255 reviews

15,804 users

Monitors web pages for updates. Useful for websites that don't provide Atom or RSS feeds.

SearchWP by Georges-Etienne Legendre, Robert Katić, others

Rated 5 out of 5 stars 139 reviews

15,068 users

Jump-to-word buttons and highlighting for the search box content

Perspectives by perspectives-cmu, dschaefer

Rated 4 out of 5 stars 47 reviews

2,005 users

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

TagSifter by chiisaitsu

Rated 4 out of 5 stars 131 reviews

0 users

Firefox 3 lets you tag your bookmarks, but it doesn't give you a great way to browse your bookmarks by their tags. TagSifter tries to. Select a group of tags in the sidebar or menu, and TagSifter shows you all the related tags and bookmarks. Or searc...

Update Notifier by Todd Long

Rated 5 out of 5 stars 162 reviews

152 users

Note from Mozilla: This add-on has been discontinued. Try Add-on Update Checker instead.

Notifies you when updates are available for your extensions and themes.

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