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

Some websites won't show properly on firefox but work normally on other browsers.

more options

Hello, When I try and go to some websites like https://source.android.com/ or https://developer.android.com/ the text on that webpage breaks. This seems to only happen on firefox and not other browsers such as brave or chrome. I have tried giving firefox a "tune up" and turning off my extensions with no luck. I have found a solution that works temporarily which is pressing ctrl + f5 to refresh the page but that stops working after I close the tab. Another problem is that on some websites such as https://www.metrobyt-mobile.com/ the navbar at the top wont load on firefox but would on other browsers. Any help with this would be greatly appreciated.

Hello, When I try and go to some websites like https://source.android.com/ or https://developer.android.com/ the text on that webpage breaks. This seems to only happen on firefox and not other browsers such as brave or chrome. I have tried giving firefox a "tune up" and turning off my extensions with no luck. I have found a solution that works temporarily which is pressing ctrl + f5 to refresh the page but that stops working after I close the tab. Another problem is that on some websites such as https://www.metrobyt-mobile.com/ the navbar at the top wont load on firefox but would on other browsers. Any help with this would be greatly appreciated.
Attached screenshots

All Replies (4)

more options

Make sure you are not blocking content.

https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop also see https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/

https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection


Diagnose Firefox issues using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?


Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

more options

Make sure you allow pages to choose their own fonts.

  • Settings -> General: Fonts & Colors -> Advanced
    [X] "Allow pages to choose their own fonts, instead of your selections above"

If you use uBlock Origin make sure not to "block remote fonts".

more options

FredMcD said

Make sure you are not blocking content. https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop also see https://blog.mozilla.org/security/2021/03/23/introducing-smartblock/ https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection

Diagnose Firefox issues using Troubleshoot(Safe) Mode {web link}

A small dialog should appear. Click Start In Troubleshoot(Safe) Mode (not Refresh). Is the problem still there?


Many site issues can be caused by corrupt cookies or cache.

Warning ! ! This will log you out of sites you're logged in to. You may also lose any settings for that website.

I tried those steps with no luck. Clearing site and cookie data solves the problem temporarily but it comes back after I reopen the tab.

cor-el said

Make sure you allow pages to choose their own fonts.
  • Settings -> General: Fonts & Colors -> Advanced
    [X] "Allow pages to choose their own fonts, instead of your selections above"
If you use uBlock Origin make sure not to "block remote fonts".

Allowing pages to choose their own fonts was already selected and uBlock Origin was not configured to block remote fonts so no success with that.

more options

Just did a full reinstall and the problem still seems to persist.