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Since updating to firefox 27.01, my preferred theme is continuousely disabled and fox reverts to the default theme. Any idea why?

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Firefox 27.1, Windows 7 Home pro. Preferred themes: HALO 4-2 by billy619 and Portland Oregon at Night by td Default theme: Firefox 27.01

I can enable any theme I choose, but after a period of time (usually an hour, sometimes less), Firefox disables it and activates the default theme.

Currently running WOT 20131118, Advanced System Care surfing protection 1.0 and Reddit Enhancement Suite 4.3.1.2.

Firefox 27.1, Windows 7 Home pro. Preferred themes: HALO 4-2 by billy619 and Portland Oregon at Night by td Default theme: Firefox 27.01 I can enable any theme I choose, but after a period of time (usually an hour, sometimes less), Firefox disables it and activates the default theme. Currently running WOT 20131118, Advanced System Care surfing protection 1.0 and Reddit Enhancement Suite 4.3.1.2.

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Hello, Thanks for letting us know about your problem. Its our pleasure. Generally after updating, sometimes your theme cant cope with the update process. therefor it seems not support with your browser versions. So sometimes Firefox gets security issue and turn off the theme.

For fixing this problem, you can try by removing the theme and install it again.

For more instruction on removing and installing themes, you can see this article Use themes to change the look of Firefox.

Hope this answer is helpful. Please let us know if this problem can not be solved by mentioned process. Regards Safwan