No one mentioned Xmarks (almost all browsers) to sync bookmarks and tabs between browsers OneNumber (chrome) which checks for Gmail, GReader, GVoice and wave f

No one mentioned Xmarks (almost all browsers) to sync bookmarks and tabs between browsers OneNumber (chrome) which checks for Gmail, GReader, GVoice and wave for updates. Then I would recommend Boomerang for Gmail (both FF and Chrome) that allows you to postpone an email to send to whenever you want. Google Dictionary (chrome): double click a word and it shows you the definition - really unobtrusive Lazarus:Form recovery (chrome) - if you were typing some text in a textArea/field and the browser crashes it can easily put the text back in when you open the page again. Rapportive for Gmail (chrome, but i thinks it also works in FF) - shows you details about senders, social networking accounts, etc Stop Autoplay for Youtube (chrome) - great if you like to open many videos in tabs and dont want to hear them play all at the same time