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When I want to use Stylish, it says that the extra is not compatible with mozilla firefox 3.6.6...what can I do to make Stylish work? I mean, can I downgrade firefox so I can use this extra?

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Mozilla firefoz says that Stylish is not compatible with 3.6.6. Can I downgrade mozilla so I can use this application?

URL of affected sites

http://

Mozilla firefoz says that Stylish is not compatible with 3.6.6. Can I downgrade mozilla so I can use this application? == URL of affected sites == http://

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Delete the files extensions.* (extensions.rdf, extensions.cache, extensions.ini) and compatibility.ini in the Firefox profile folder to reset the extensions registry. See "Corrupt extension files": http://kb.mozillazine.org/Unable_to_install_themes_or_extensions

If you see disabled extensions that are not compatible on the next start in "Tools > Add-ons > Extensions" then click the "Find Updates" button to do a compatibility check.