Helpful Firefox add-ons

If you are a firefox user these two add-ons are great.

! Pronounce - highlight a word and right click and it will pronounce it.
https://addons.mozilla.org/en-US/firefox/addon/1689

! Dictionary Tooltip - highlight > right click and you can view the definition of any word.
https://addons.mozilla.org/en-US/firefox/addon/1171