I can't change the tabs in preferences iMac 10.9.5 Firefox 38

I opened the preferences it is under the general tab in the sidebar by clicking or scrolling is not change seeking to privacy settings

Looks like a problem with the theme you use that does not support the topic: preferences page correctly.
You can check if there is an update or deactivate the theme and go back to the default theme.

You can enable/disable browser.preferences.inContent false on the subject: the preferences page via double click to restore the autonomous Options/preferences window you had in previous versions of Firefox.

You can open the topic: config page via the address bar.
You can accept the warning and click on "I'll be careful" to continue.

Tags: Firefox

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