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Charset Switcher
Requires Restart
Supports to customize the Default Character Encoding for each sites.
Slovar za slovenski jezik
Link Properties Plus
Requires Restart
Provides extended link properties: size of linked file, last modified time, etc.
Download.com - Free Software Downloads and Reviews
Freeware, Shareware and Demo software downloads for PC, Mac, Linux, and Handhelds categorized into categories, plus software reviews. This is a searchbar search engine add-on.
Urban Dictionary
ТВ онлайн
always ".com" - Google.com (in English)
Tired of being redirected to a local Google site when you specifically want Google.com?
Use "Google dot com", not "dot something else". Use Google.com, in English, without being redirected to a country-specific Google site when you're not in the US.
Facebook users
Browser Backgrounds
Requires Restart
Browser Backgrounds is the new Firefox extension that lets you install backgrounds directly on your browser.
Oxford Dictionaries
Search Oxford Dictionaries Online for English word definitions.
Torrent Meta Search
Greek - English (US) Spelling dictionary
Combined Greek - English (US) spell checking dictionary for Firefox - Thunderbird - Seamonkey
Yahoo! UK & Ireland
YouTube OpenSearch
searx.me
DOM Inspector Plus! [dm]
Requires Restart
Improved DOM Inspector! [dm version]. Box Model new layout & more data, see screenshot!. Horizontal scroll for Dom-Tree, and some more.
Inspects the structure and properties of a window and its contents.
WEB.DE Search
With WEB.DE Search you safely and quickly find what you are searching for.
Cambridge dictionaryTo create your own collections, you must have a Mozilla Add-ons account.
