Firefox 2 Spell-Check Custom Dictionary
If you’ve gotten Firefox 2.0 you may have noticed a red dotted line under certain words when, say, posting a comment on someone’s blog. This is a spell-check feature. Very handy indeed — especially for me since I’m a rotten typist. Well, like most spell-check features, Firefox also offers a custom- or user-dictionary.
Using your mouse, hover over the suspect word, right-click on it, and on the resulting menu you will see optional spellings for the questionable word in addition to an “Add to dictionary” option (alt+t in Windows). Great for all those web development-related acronyms and abbreviations we use. There is also and option to turn off the spell check function by de-selecting “Spell check this field” (alt+s in Windows) further down the menu if you happen to be one of those perfuct smellers! 
David Zemens responds:
Posted: October 26th, 2006 at 4:14 pm →
In fact, Mozilla allows you to turn off the spell check, which is a handy feature for us brainiacs. Just go to the Tools –> Options –> Advanced and deselect the box that says “Check my spelling as I type”. As if by magic, the spell check no longer functions!
Thanks Mike!
Mike Cherim responds:
Posted: October 26th, 2006 at 6:54 pm →
Good tip, David. I’ll leave mine on as I’m no brainiac, but it’s good to know.
Lakshan responds:
Posted: October 26th, 2006 at 9:22 pm →
If you want to add bulk of custom words you can goto dictionaries folder which resides in Firefox installation folder and open the dictionary file of your language in wordpad and append the set of words to the bottom of the file.
Mike Cherim responds:
Posted: October 26th, 2006 at 11:18 pm →
That’s good to know, Lakshan. Now I can add XHTML, (HTML is in there already), CSS, PHP, and all that good stuff. Thanks.
milo responds:
Posted: October 29th, 2006 at 4:15 am →
I didn’t know that, thanks for the point, Mike.
hebert responds:
Posted: November 13th, 2006 at 6:27 pm →
hey, im using firefox and there is no option inside the advanced tab, that says check spelling as i type, so weird, and i really wunna turn it off, some one help me plz
Mike Cherim responds:
Posted: November 13th, 2006 at 6:54 pm →
Tools > Options > General > under “Browsing” > [] Check my spelling as I type.
Look again I guess. It’s there on mine.
hebert responds:
Posted: November 15th, 2006 at 12:19 pm →
thnx, i found it