To edit the user dictionary in Firefox
Basically, you add a term to the dictionary by writing a new E-Mail. This is where you write a word and then you save it on "spelling" > "add a word" (see image). But what if you have taken accidentally misspelled terms? Then you have to resort to a Trick with the spelling error in the personal dictionary can correct:
- First, you need to re-open the window for a new E-Mail. To do this, click on Compose icon bar at the top left of the main menu.
- Here you click on the top left next to the Send Button on "spelling". The box is grayed out, click with your mouse in the Compose box. Then the Button is visible and you can click on it.
- Then, select in the field "user dictionary" in the "edit" button (see image).
- There you will find a listing of all the terms that have been added to the user dictionary. Unwanted entries can be deleted by highlighting the entry and clicking Remove. The dictionary entry is "Replace" but also immediately correct it.

Dictionary edit
Practice tip applies to Thunderbird Version 17.0.6. Tip: How to use the spell checker in Thunderbird to install, read here.
