1418618 - Firefox 57.0 doesn't display any text on certain sites on Ubuntu 16.04

Status: RESOLVED DUPLICATE of bug 1412090

(Core :: Security: Process Sandboxing, defect)

Description

[t.kemper]

Attachment: FirefoxQuantumYoutube.png

User Agent: Mozilla/5.0 (X11; Linux x86_64) AppleWebKit/537.36 (KHTML, like Gecko) Ubuntu Chromium/62.0.3202.89 Chrome/62.0.3202.89 Safari/537.36

Steps to reproduce:

I updated to Firefox 57 (stable) from the Ubuntu repositories.



Actual results:

Firefox doesn't show any text on certain websites, e.g. github.com and youtube.com (screenshots attached), even in safe mode and with a fresh profile.
This also happens on Firefox 58.0b4 beta, downloaded from Mozilla directly.


Expected results:

Firefox should render all text.

Comment 1

[t.kemper]

Attachment: FirefoxQuantumGithub.png

Comment 2

[Matthias Versen [:Matti]]

This could be some kind of a font issue that appears only on your system.
Do you have time to use the mozregression tool to find the change in the Mozilla source that caused this bug ?
- http://mozilla.github.io/mozregression/

Comment 3

[Matthias Versen [:Matti]]

Reporter: Please ignore my comment about mozregression, this is caused by the sandboxing feature.
You can read more about this at this blog post: http://www.morbo.org/2017/11/linux-sandboxing-improvements-in.html

Comment 4

[Andre Klapper]

Duplicate of bug 1418240 ?

Comment 5

[Aremesal]

I'm having the same issue on Xubuntu 16.04 and FF 57.0. I can't see the fonts in a lot of websites, both my own sites (which uses CSS fonts) and third party sites. As an example: I can't see any fonts on https://bitbucket.org/

I've unchecked the "Allow their own fonts" preference setting, so I can at least read the webs, but it do is a bug in FF 57 + *buntu. And I think it's no a solution to manually install any "missing" font - which is not missing, as Chrome/Chromium are showing them with no issues.

Comment 6

[t.kemper]

(In reply to Matthias Versen [:Matti] from comment #3)
> Reporter: Please ignore my comment about mozregression, this is caused by
> the sandboxing feature.
> You can read more about this at this blog post:
> http://www.morbo.org/2017/11/linux-sandboxing-improvements-in.html

Thanks. I guess the 'needinfo' flag can be removed then.