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Websites sometimes have a weird formatting

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  • Last reply by cor-el

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Dear all,

recently I picked up Mozilla again and saw some weird website formatting for some sites. It sometimes only affect certain areas (see attached picture Bad Formatting Amazon, where one part got squished and dragged down very much) and sometimes it affects the whole website (please refer to the other two pictures, one showing the proper formatting and the other one a formatting, which occurs over time, when leaving the website open)

Can I change any settings to combat this? Looking forward to your input!

Thank you and best regards, David

Dear all, recently I picked up Mozilla again and saw some weird website formatting for some sites. It sometimes only affect certain areas (see attached picture '''Bad Formatting Amazon''', where one part got squished and dragged down very much) and sometimes it affects the whole website (please refer to the other two pictures, one showing the proper formatting and the other one a formatting, which occurs over time, when leaving the website open) Can I change any settings to combat this? Looking forward to your input! Thank you and best regards, David
Attached screenshots

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Did you make changes to the minimum font settings like setting a minimum font size that isn't none?

If you have made changes to Advanced font-size settings like increasing the minimum/default font-size then try the Default font-size setting "16" and the Minimum font-size setting "none" to see if that makes a difference.

  • Settings -> General -> Language and Appearance -> Fonts -> Advanced -> Minimum Font Size (none)

Make sure you allow pages to choose their own fonts.

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

It is better not to increase the minimum font-size, but to use the built-in Firefox Zoom feature.

  • Settings -> General -> Language and Appearance -> Zoom

If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block content (Adblock Plus, NoScript, DuckDuckGo PE, Disconnect, Ghostery, Privacy Badger, uBlock Origin) always make sure such extensions do not block content.

Firefox shows a purple shield instead of a gray shield at the left end of the location/address bar in case Enhanced Tracking Protection is blocking content.

  • click the shield icon for more detail and possibly disable the protection

You can check the Web Console for relevant-looking messages about blocked content.


You can try these steps in case of issues with webpages:

You can reload webpage(s) and bypass the cache to refresh possibly outdated or corrupted files.

  • hold down the Shift key and left-click the Reload button
  • press "Ctrl + F5" or press "Ctrl + Shift + R" (Windows,Linux)
  • press "Command + Shift + R" (Mac)

Clear the Cache and remove the Cookies for websites that cause problems via the "3-bar" Firefox menu button (Settings).

"Remove the Cookies" for websites that cause problems:

  • Settings -> Privacy & Security
    Cookies and Site Data: "Manage Data"

"Clear the Cache":

  • Settings -> Privacy & Security
    Cookies and Site Data -> Clear Data -> [X] Cached Web Content -> Clear

Start Firefox in Troubleshoot Mode to check if one of the extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) or if hardware acceleration or if userChrome.css/userContent.css is causing the problem.

  • switch to the DEFAULT theme: "3-bar" menu button or Tools -> Add-ons -> Themes
  • do NOT click the "Refresh Firefox" button on the Troubleshoot Mode start window