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Is it possible to trigger the 'disable 3rd part add-on' dialog box again in Firefox? When I upgraded to Firefox 8 Beta it did not offer me the dialog. It could be that earlier, when I tried Aurora, I got the dialog once and so its not offering me again. If so, how can I re-enable it?

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Note: Some settings may require a browser restart to take effect.

First of all, make sure that you have Warn me when sites try to install add-ons enabled under Options > Security.


You can also add the website to the whitelist without being prompted by clicking Exceptions....


Also, if you have a xpinstall.enabled preference in about:config and it is set to false, set it to true or delete the preference.

Alternatively, hardware acceleration may be causing the warning's GUI to fail. Try disabling Use hardware acceleration when available under Options > Advanced > General > Browsing.

hardware acceleration

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