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Browserling - Cross-browser testing Mozilla Addon Cross-browser test websites in the most popular browsers such as Internet Explorer, Edge, Chrome, Firefox, Safari and Opera. Try for free!
Total Downloads: 373 Download Plugin
Always active Window (Always Visible) Mozilla Addon Pretend that all browser windows are active by spoofing the visibility state event
Total Downloads: 1.3K Download Plugin
GoodTwitter Mozilla Addon Forces your browser to use old twitter.
Total Downloads: 690 Download Plugin