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  3. The best answers are voted up and rise to the top just deleted all search engines from my Firefox. Needless to say, I have never used it - probably some Add-on changed these defaults. I am using Ubuntu 8.04.

I would like all my original search engines back, but pressing "Restore defaults" just brings up again; I'm looking for the file where these settings are stored.

How can I restore the default search engines that are supplied with Firefox? What file are they stored in?

By the way, this is a very ugly practice - removing all search engines but yourself? I will never touch their website with a stick

Thanks, Udi

share|improve this question
Do you have Comodo? – random Aug 18 '09 at 10:46
I think you should remove the google tag since it's only tangentially related to the question. – nagul Aug 18 '09 at 19:37
@nagul done, thanks. – Adam Matan Aug 19 '09 at 7:56
up vote 1 down vote accepted

i am not sure whether toolbar affects any other search engines or not but i can certainly tell you that there are many other possible side effects of that toolbar. you can take look at strange firefox bug

i would recommend reinstalling firefox without keeping any preferences for next install.

share|improve this answer

Try this tip from the mozilla community documentation pages:

Restoring default search engines

Default search engines that come pre-installed in Firefox currently include Google, Yahoo,,, Creative Commons, eBay, and in Firefox 3, Wikipedia. If you have removed any of the default search engines. you can restore them using the "Manage Search Engines "Restore Defaults" button. This will not remove any added search engines. (If the "Restore Defaults" button is disabled or "grayed-out", as shown above, that means that all of the default search engines are still available).

Another way you can restore the default set of search engines is to use the Firefox Safe Mode option, Restore default search engines. This will add back all of the default search engines if some of them are missing. This will not remove any added search engines.

You can invoke firefox in safe-mode from the command line:

firefox -safe-mode

share|improve this answer
Didn't work. They must have deleted some configuration file, which is really nasty. – Adam Matan Aug 19 '09 at 7:59
Agree. I'd just reinstall if I were you. Lately there has been a spurt in the number of misbehaving, borderline malicious Firefox addons. It hasn't come at a good time for the Firefox team. – nagul Aug 19 '09 at 9:41

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