Firefox 43 Now Officially Available, But GTK3 Gets Disabled

Written by Michael Larabel in Mozilla on 15 December 2015 at 01:13 PM EST. 51 Comments
Mozilla Firefox 43.0 is now officially available, but the GTK3 tool-kit support isn't enabled by default in the official Linux binaries.

As a minor correction to yesterday's article about Firefox 43 with GTK3, the default Linux build is sticking to GTK2. GTK3 support was present during the Firefox 43.0 Beta, but they have decided to postpone this support by default until Firefox 45.

If you are compiling Firefox yourself, however, you can continue to manually enable the cairo-gtk3 platform by default as all of the GTK3 code remains part of mainline Firefox.

Per this Mozilla bug report, "Although the GTK3 port is ready to ship, the update experience will be poor for users without GTK3 installed. We don't know what proportion of users that would be. Reverting to GTK2 for 43 beta and maybe 44 beta also would give some time to sort out [bugs]."

The official Firefox 43.0 release notes are now available here and you can download this web browser update via
Related News
About The Author
Michael Larabel

Michael Larabel is the principal author of and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 20,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and automated benchmarking software. He can be followed via Twitter, LinkedIn, or contacted via

Popular News This Week