Most Popular Extensions

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HiliteOnSelection No Restart

Whatever you select is highlighted throughout the document.

Rated 4 out of 5 stars (1)
18 users

WebSMS No Restart

Send SMS text messages from your browser

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18 users

Issue Pigeon No Restart

Try the issue-pigeon menu entry after selecting some broken links or text errors.
The Issue Pigeon just might find its way home.
See https://github.com/anaran/IssuePigeonFirefox/blob/master/IssuePigeon/data/HELP.md

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18 users

MyKanji No Restart

List in the text selection of the page the kanji you don't know yet .

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18 users

Mukparasi Korean-English Dictionary File

A Korean-English dictionary file for Mukparasi.

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18 users

Tulum Expertizer! No Restart

Computes the 'medical expert degree' of any health-related document.

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18 users

pagetokeep No Restart

One-click bookmark saving tool. Save your bookmarks on the cloud with pagetokeep.com

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18 users

Quicksearch

Quicksearch - удобный способ поиска выделенного текста на веб-странице. (Quicksearch is a convenient way to search selected text on a web page. It opens search block above where you can choose search engine.)

Rated 5 out of 5 stars (1)
18 users

Comic Rocket No Restart

Comic rocket plugin. Must be logged in. Scrapes the comic rocket website to display a list of unread webcomics, including their progress. Click on a comic to go to the first unread page. Updates the list every 15 minutes.

Rated 4 out of 5 stars (6)
18 users

Rádio Sap No Restart

Ouça enquanto navega no Facebook ou Twitter

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18 users

Screen Capturing No Restart

Captures and shares your screen in Firefox

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18 users

Wikimedia Debug Header No Restart

Inject a 'X-Wikimedia-Debug' header into HTTP requests to Wikimedia Foundation projects.

Rated 5 out of 5 stars (2)
18 users

Page Meta Manager

Extension for code analysis page (meta tags) and display the menu to work on them.

Rated 5 out of 5 stars (1)
18 users

Restore -remote No Restart

Firefox 36 removed the -remote command line argument. This addon restores it, albeit working slightly differently.

Rated 5 out of 5 stars (2)
18 users

RITMOSFERA RADIO No Restart

Una atmosfera de ritmos te espera!!!

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18 users

StealEngine Search Addon No Restart

Highlight text and search StealEngine for hot deals!

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18 users

Whitepages Pro Web Reverse Phone No Restart

This plugin will identify 10-digit phone numbers on webpages, and provides an icon next to them that you can click to search these phones on Whitepages Pro Web.

Rated 1 out of 5 stars (1)
18 users

Synesthesia simulator No Restart

Synesthesia simulator: changes the colors of letters according to a stylesheet.

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18 users

Recruitee No Restart

Search for promising candidates on social sites and import them to your Recruitee account.

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18 users

OpenVoice for Google Calendar No Restart

Easily schedule OpenVoice Audio Conferences from your Google Calendar.

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18 users