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When trying to activate Webgl on Firefox, I misspelled "Webgl" and wrote "Weblg".

I tried to remove it from about:config with delete key or seeing right mouse click options on it, but without success...

Any help?

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up vote 2 down vote accepted

Googling about, I found that solution:

Close Firefox. Backup the prefs.js file located in your profile folder. Open the original prefs.js in a text editor. Remove erroneous key, and save.

-- Brian

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Simply reset the entry that you want to delete in about:config and then restart firefox et Voilà !

I don't know how long this solution will remain valid but it works fine at least for now...

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