This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Disable addons behaves differently to safe mode

  • 8 ŋuɖoɖowo
  • 1 masɔmasɔ sia le esi
  • 57 views
  • Nuɖoɖo mlɔetɔ DuncanL

more options

When looking at stories on the BBC news site; any quotes from Twitter do not display correctly - they just display as the word "twitter" (which is a link).

If I restart in Safe Mode, the Twitter citations display correctly (a box with the Twitter post in it).

If I restart in normal mode, and then manually disable all addons (to try and pin down which one is affecting it), they still display incorrectly. Only Safe Mode works.

Why does safe mode and disabled addons behave differently? And how do I find out which addon is causing a problem if disabling them doesn't have any effect?

Thanks.

When looking at stories on the BBC news site; any quotes from Twitter do not display correctly - they just display as the word "twitter" (which is a link). If I restart in Safe Mode, the Twitter citations display correctly (a box with the Twitter post in it). If I restart in normal mode, and then manually disable all addons (to try and pin down which one is affecting it), they still display incorrectly. Only Safe Mode works. Why does safe mode and disabled addons behave differently? And how do I find out which addon is causing a problem if disabling them doesn't have any effect? Thanks.

All Replies (8)

more options

It's probably because of the content blocking (tracking protection) list. Try to change the list to Standard in options or allow trackers on this specific site.

TyDraniu trɔe

more options

Or it could be Hardware Acceleration. How to disable Hardware Acceleration {web link}

more options

FredMcD said

Or it could be Hardware Acceleration. How to disable Hardware Acceleration {web link}

No effect. Hard to see how it could possibly have any bearing to be honest!

DuncanL trɔe

more options

TyDraniu said

It's probably because of the content blocking (tracking protection) list. Try to change the list to Standard in options or allow trackers on this specific site.

Tried all the settings and allowing everything for the site - no change.

more options

Did you check the Web Console for messages about content?

You also seem to have extensions that can inject JavaScript or CSS code on the web page.

Are you possibly using a userContent.css file in the chrome folder that might affect the appearance of web pages?

more options

Disable addons behaves differently to safe mode

Safe Mode disables a lot more than add-ons.

more options

cor-el said

Did you check the Web Console for messages about content? You also seem to have extensions that can inject JavaScript or CSS code on the web page. Are you possibly using a userContent.css file in the chrome folder that might affect the appearance of web pages?

No userContent but I will inspect the console next time there's a page up with the relevant Twitter bits (it's generally only on the "Live" updating stories)

more options

the-edmeister said

Disable addons behaves differently to safe mode Safe Mode disables a lot more than add-ons.

OK - but what? And why does it make a difference to page rendering? And how do I identify what and stop it!  ;-)