Simple TTS 0.7.2.rev36.1-signed No Restart
Simple TTS, add a contextual menu item (right-click menu option) that reads with a uk female voice the selected text. The addons uses iSpeech. http://www.ispeech.org/.
Icon credit to http://www.visualpharm.com/
This add-on has been preliminarily reviewed by Mozilla. Learn more
This add-on is not compatible with your version of Firefox because of the following: