Removing Added Words From Dictionary

How-to remove words added in error to the Firefox dictionary

Compatibility

Works with: Firefox 3.6+

Background

The built-in Spellcheck with Firefox is great, but it is very easy to accidentally add a word to the dictionary in error.

The Tweak

The process for removing the errant entry is easy to do just not really documented anywhere.

1. Close Firefox (Firefox saves the dictionary file upon closing)
2. Navigate to your profile folder (locate your profile folder)
3. Look for the file persdict.dat
4. Open with a text-editor (Notepad is NOT recommended as it removes all the line breaks between words).
5. Find the misspelled word or words and remove.
6. Save the file and restart Firefox

Notes

Original Article

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Updated: November 15, 2011