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This article explains how to fix problems with websites that display incorrectly in Firefox or don't work the way they should.
Table of Contents
- 1 Clear the cookies and cache
- 2 Reset Zoom
- 3 Reset the minimum font size
- 4 Reset the page style
- 5 Check that JavaScript is not blocked
- 6 Check that your system clock is set correctly
- 7 Disable problematic extensions or hardware acceleration
- 8 Check if Firefox has blocked insecure content
- 9 Turn off Enhanced Tracking Protection for the website
- 10 Report the website
- 11 Related links
Clear the cookies and cache
Firefox caches websites, which means it saves some files on your machine so that it doesn't have to re-download everything when you visit sites. If a website has updated their code, Firefox may still be using some of the old code along with some of the new, which can make a web page display incorrectly. To fix this, you need to clear the cookies and cache:
- Click the menu button
to open the menu panel.
- Click and select
- In the Time range to clear: drop-down, select Everything.
- Below the drop-down menu, select both Cookies and Cache. Make sure other items you want to keep are not selected.
- Click .
- Click the menu button to open the menu panel.
- Click and select
- In the When: drop-down, select Everything.
- Below the drop-down menu, select both Cookies and site data and Temporary cached files and pages. Make sure other items you want to keep are not selected.
- Click .
Reset Zoom
Some websites may not look right at different zoom levels. To reset Zoom setting, for the site, press Ctrl + 0command + 0 and for all sites, see the documentation about the Zoom add-on you use.
Reset the minimum font size
Some sites do not display properly with a minimum font size. To reset the minimum font size:
- In the Menu bar at the top of the screen, click and then select or , depending on your macOS version.Click the menu button and select .
- Select the panel and navigate to Language and Appearance.
- In the Fonts & Colors section, click .
- Change the Minimum font size to None.
Reset the page style
You may have inadvertently set the page style to . To ensure Firefox is set to use the page's default style:
- Press the Alt key (or the AltGr key) to temporarily bring up the Firefox Menu barOn the menu bar at the top of the Firefox window, click on the menu, then select and click .
Now that the page is using its default style, it may be displayed correctly.
Check that JavaScript is not blocked
You should check whether you have an extension (such as NoScript) or Internet security program (such as a firewall, antivirus, or anti-spyware program) that can block JavaScript. To learn more, see JavaScript settings and preferences for interactive web pages.
Check that your system clock is set correctly
In some instances the loading and verification of secure web content will be time-dependent, so you should check that date, time and timezone are set correctly on your system.
Disable problematic extensions or hardware acceleration
Some extensions may interfere with the way websites are displayed, or your graphics card and drivers don't display some web content correctly when hardware acceleration is turned on. Follow the instructions in the Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems article to see if one of these is causing the problem.
Check if Firefox has blocked insecure content
Firefox blocks potentially harmful, insecure content on web pages that are supposed to be secure. Click the padlock icon in the address bar to see if Firefox has blocked insecure parts of the page. See Mixed content blocking in Firefox for details.
Turn off Enhanced Tracking Protection for the website
If a site seems broken, disabling Enhanced Tracking Protection might fix the issue by allowing trackers on just that site. It allows trackers to load on that site only. Enhanced Tracking Protection will still prevent trackers on other sites. To disable it:
- Visit the website.
- At the left of the address bar, click the shield icon.
- At the top right of the panel, toggle off the Enhanced Tracking Protection switch . This will disable Enhanced Tracking Protection for the site, causing the page to automatically reload and enable trackers.
Follow the same process to turn Enhanced Tracking Protection back on.
If the issue persists, consider reporting it by submitting a Broken Site Report. This allows the Webcompat team to examine the problem. For more information, see How do I report a broken site in Firefox desktop?
Report the website
If turning off Enhanced Tracking Protection allows a page to display and work correctly, you can report the website to help improve Firefox. See the How do I report a broken site in Firefox desktop? article for more information.
Occasionally, you may come across a page that simply doesn't work in Firefox, even when Enhanced Tracking Protection is turned off. If the same page works in another browser, please report the problem with our desktop reporting tool, or by visiting Webcompat.com.
Related links
- Websites don't load - troubleshoot and fix error messages
- Fix problems that cause images to not show
- Fix common audio and video issues
Based on information from Websites look wrong (mozillaZine KB)
