1461363 - [snap] flash plugin content not rendered

Status: RESOLVED WONTFIX

(Release Engineering Graveyard :: Release Automation: Snap, defect)

Description

[Olivier Tilloy]

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/63.0.3239.40 Safari/537.36

Steps to reproduce:

1) On ubuntu 18.04, install the snap package (snap install firefox)
2) sudo apt install adobe-flashplugin
3) mkdir -p ~/snap/firefox/common/.mozilla/plugins
4) cp /usr/lib/adobe-flashplugin/libflashplayer.so ~/snap/firefox/common/.mozilla/plugins/
5) snap run firefox
6) browse to http://get.adobe.com/flashplayer/about/?
7) click the box to activate the flash plugin


Actual results:

The plugin appears to be enabled, but no content is rendered. Seeing the following errors in terminal (several times):

(/snap/firefox/85/plugin-container:10328): Gtk-CRITICAL **: IA__gtk_widget_get_visual: assertion 'GTK_IS_WIDGET (widget)' failed
(/snap/firefox/85/plugin-container:10328): Gdk-CRITICAL **: IA__gdk_colormap_new: assertion 'GDK_IS_VISUAL (visual)' failed
(/snap/firefox/85/plugin-container:10328): Gdk-CRITICAL **: IA__gdk_colormap_alloc_colors: assertion 'GDK_IS_COLORMAP (colormap)' failed
(/snap/firefox/85/plugin-container:10328): Gtk-CRITICAL **: IA__gtk_widget_modify_bg: assertion 'GTK_IS_WIDGET (widget)' failed


Expected results:

The flash content should be rendered correctly.

Comment 1

[Olivier Tilloy]

This is possibly a GTK version mismatch between the flash plugin and the firefox snap (which was built against 3.22.24 from https://launchpad.net/~ubuntu-desktop/+archive/ubuntu/gnome-3-26).

Comment 2

[Olivier Tilloy]

Correction: the firefox snap is built against the version of GTK that's in xenial proper, not that PPA.
I also tested with the flash plugin package from 16.04, and I am seeing the same issue.

Comment 3

[Daniel Bodea [:danibodea]]

Hello

I have reproduced this issue as described in comment 0 on Ubuntu 16.04 LTS 64-bit. The Adobe About page has an animation that is not properly displayed on Firefox Snap Release, nor on Google Chrome (after allowing flash to perform).

Comment 4

[frodeseverin]

I have this probelem on Debian 9.4 using a freshly installed Firefox snap.

I found this page, pointing to an unmet dependency on libsasl2.so
https://www.slax.org/blog/19021-Troubles-with-flashplayer.html

Perhaps including this library in the Firefox snap would fix the problem?

How do I go about testing this?

;)Frode

Comment 5

[Mike Kaply [:mkaply]]

Flash is no longer supported.