[Bug 1893021] Re: Flash plugin symbol lookup error with firefox 80.0+build2 on xenial (gtk_window_set_titlebar)

Bug Watch Updater 1893021 at bugs.launchpad.net
Fri Aug 28 16:47:28 UTC 2020

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On 2020-08-28T14:37:12+00:00 Olivier Tilloy wrote:

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML,
like Gecko) Chrome/85.0.4183.83 Safari/537.36

Steps to reproduce:

Downstream (Ubuntu) bug report:

With the release of firefox 80.0, loading the flash plugin on Ubuntu
16.04 was failing with the following error:

    /usr/lib/firefox/plugin-container: symbol lookup error:
/usr/lib/firefox/libxul.so: undefined symbol: gtk_window_set_titlebar

Actual results:

In previous releases, loading the flash plugin worked fine.

Expected results:

This regression was caused by two recent revisions:
https://phabricator.services.mozilla.com/D84623 and
https://phabricator.services.mozilla.com/D82804, which added GTK
function stubs (in widget/gtk/mozgtk/mozgtk.c in the wrong section (they
were added to the COMMON_SYMBOLS section but they should be in the
GTK3_SYMBOLS because they are GTK3 only).

Reply at:

On 2020-08-28T14:47:39+00:00 Olivier Tilloy wrote:

Created attachment 9172666
Bug 1661715 - Move GTK function stubs to the correct section.

Reply at:

On 2020-08-28T15:17:47+00:00 Release-mgmt-account-bot wrote:

[Bugbug](https://github.com/mozilla/bugbug/) thinks this bug should
belong to this component, but please revert this change in case of

Reply at:

** Changed in: firefox
       Status: Unknown => New

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  Flash plugin symbol lookup error with firefox 80.0+build2 on xenial

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