On Sun, 2016-05-01 at 07:17 -0400, Felix Miata wrote:
FF45 is built with GTK2 toolkit, well supported by non-Gnome DEs. FF46 was switched to GTK3 toolkit, which will unlikely beneficial to any users of non-GTK3 desktops like KDE. The toolkit switch has caused several as yet unresolved UI problems for users of other DEs and even for Gnome users. See e.g. https://bugzilla.mozilla.org/buglist.cgi?list_id=12992990&short_desc= gtk3&resolution=---&classification=Client which doesn't include a scroll behavior bug I've found that has not yet been reported as a separate issue AFAICT.
Just to clarify, although upstream decided to ship gtk3 builds by default from mozilla.com, updated firefox 46 for Leap released through Maintenence will not be built against gtk3, but will continue to be based against gtk2 at least until most gtk3-only issues (like the one Felix reported here and there are several others [1]) have been resolved at the upstream level. Given that firefox is openSUSE's default browser, it makes sense for us to play it safe. An email regarding the roadmap to switching to gtk3 builds by default *for Tumbleweed only* was discussed in a mail sent to the -factory ML [2]. Whether you are on Leap or Tumbleweed, if you want to help test unofficial builds of firefox built against gtk3, please follow the discussion in [2], and please file bugs generously. Thank you very much. [1] https://bugzilla.mozilla.org/buglist.cgi?quicksearch=[GTK3]&list_id=12993532 [2] https://lists.opensuse.org/opensuse-factory/2016-04/msg00293.html
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