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firefox won't start; get error message "symbol gtk_window_get_type" not found in /usr/lib/gtk-3.so.o

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  • Last reply by James

monkjd
monkjd
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firefox worked ok up until about april 2016. When I revert to the march 2016 version which I saved, it is again ok. Every update gives the indicated problem.

firefox worked ok up until about april 2016. When I revert to the march 2016 version which I saved, it is again ok. Every update gives the indicated problem.

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James
James
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As of Firefox 46.0 and newer Releases for Linux one needs to have GTK 3.4 (three.four) or newer (newest is say 3.20)

Due to this you also need a GTK 3 os theme to theme Firefox 46+ as GTK 2 themes will not work.

Firefox 45.0.2 and older could run with GTK 2.

https://www.mozilla.org/firefox/46.0.1/system-requirements/