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Firefox does not correctly show web pages

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  • 4 have this problem
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  • Last reply by cor-el

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I'm using Elementary OS (built on Ubuntu 16.04.3 LTS ) and FF Quantum doesn't show all the information in some webpages. I attach a couple of screenshots. With the last version before before Quantum I hadn't this problem.

To solve it I've tried to 1) restart with add-ons disabled 2) refresh FF 3) uninstall and reinstall FF 4) delete my profile and uninstall and reinstall FF no one of the previous works :(

Also I noticed that, although I've tried to delete my profile and uninstall and reinstall FF, in about:config lots of preferences are modified.

How can I make FF Quantum work properly?

Thank you very much, Giancarlo

I'm using Elementary OS (built on Ubuntu 16.04.3 LTS ) and FF Quantum doesn't show all the information in some webpages. I attach a couple of screenshots. With the last version before before Quantum I hadn't this problem. To solve it I've tried to 1) restart with add-ons disabled 2) refresh FF 3) uninstall and reinstall FF 4) delete my profile and uninstall and reinstall FF no one of the previous works :( Also I noticed that, although I've tried to delete my profile and uninstall and reinstall FF, in about:config lots of preferences are modified. How can I make FF Quantum work properly? Thank you very much, Giancarlo
Attached screenshots

Modified by supergianchi

Chosen solution

You're welcome.

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If locally installed fonts aren't working then this is possibly a sandbox security issue.

You can set this pref to 2 or 1 on the about:config page to lower the sandbox security setting.

  • security.sandbox.content.level = 1
  • close and restart Firefox to make the change effective.

If '1' still doesn't have effect then try '0' to disable the sandbox.

If this didn't work then undo/reverse the change and reset the pref via the right-click context menu to the default value.

You can open the about:config page via the location/address bar. You can accept the warning and click "I accept the risk!" to continue.

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Yes!!! Thank you very much :) with security.sandbox.content.level = 2 everything works again! Thanks so much, you make one man happy :)

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Chosen Solution

You're welcome.