For those of you who don’t keep a miniature English teacher on your desktop to help you with your writing woes, there is After the Deadline.  Now, I have already told you before about the great bookmarklet they provide to help you with your spelling and grammar errors, but now they have a Firefox extension too.

Did you know that Firefox comes in handy when it comes to proof reading pages?  Using a simple bookmarklet, you can easily enable Firefox’s built in spell checker on any web site.
The first step to take would be to bookmark this link (or drag and drop it onto your bookmarks toolbar).
+ spell check
When the bookmarklet is clicked, Firefox will turn on the built in spellchecker and highlight any misspelled words that are on the page you are currently browsing.  [...]

What do you do about misspelling words in text boxes?  Well, you use the built-in Firefox spell check feature.  However, by default it does not work with ALL text fields.  That can simply be rectified though your about:config settings.

Just type in about:config into your address bar to get started.  Next, into the filter text box, type in layout.spell.  That should bring up the preference name layout.spellcheckDefault. Right-click it, and then select “Modify”.  Change the 1 (default value) to 2 [...]

Firefox 2’s dictionary function might take a little while to train, but once you do it is a welcome improvement for all us bad spellers out there. When you see a word that you need to add to the dictionary – that might not be there – it is easy to add it in so it doesn’t show up as a misspelled word any longer.
All you need to do is right-click on the word and select “Add [...]