Someone asked about a spellchecker for Firefox awhile back. This works...it did for me. Head over to: spellbound.sourceforge.net/install Follow the instructions. To add a a dictionary: dictionaries.mozdev.org/installation (or hit the link on the above link) You can also view the instructions on adding the spellchecker to Thunderbird. To test it after restarting Firefox just open a form or do a test post here a GT type in some sentence and right click. You should see the spellcheck option upon a successful install. Good luck.