Websites look wrong or appear differently than they should

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This article deals with websites not appearing correctly in Firefox.

Note: If you see the shield icon Mixed Content Shield in the address bar and you're having trouble with that website, please see How does content that isn't secure affect my safety? for more info.

Note: The Reset Firefox feature can fix many issues by restoring Firefox to its factory default state while saving your essential information. Consider using it before going through a lengthy troubleshooting process.

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:

  1. At the top of the Firefox window, click on the Firefox button, go over to the History menu and select Clear Recent History....On the menu bar, click on the Tools menu, and select Clear Recent History....At the top of the Firefox window, click on the Tools menu, and select Clear Recent History....
  2. In the Time Range to clear: drop-down, select Everything.
  3. Click the arrow next to Details to display the list of items that can be cleared.
  4. Select both Cookies and Cache.
  5. Click Clear Now.
  1. At the top of the Firefox window, click on the Firefox button, go over to the History menu and select Clear Recent History....On the menu bar, click on the History menu, and select Clear Recent History....At the top of the Firefox window, click on the History menu, and select Clear Recent History....
  2. In the Time Range to clear: drop-down, select Everything.
  3. Click the arrow next to Details to display the list of items that can be cleared.
  4. Select both Cookies and Cache.
  5. Click Clear Now.
  1. Click the menu button New Fx Menu , choose History and select Clear Recent History....
  2. In the Time Range to clear: drop-down, select Everything.
  3. Click the arrow next to Details to display the list of items that can be cleared.
  4. Select both Cookies and Cache.
  5. Click Clear Now.
Now that your cookies and cache are cleared, visit the website again to see if the problem is solved.

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:

  1. At the top of the Firefox window, click on the Firefox button and then select OptionsAt the top of the Firefox window, click on the Tools menu and then select OptionsOn the menu bar, click on the Firefox menu and select Preferences...At the top of the Firefox window, click on the Edit menu and select Preferences

    Click the menu button New Fx Menu and choose OptionsPreferences

    .
  2. Click to select the Content panel.
  3. In the Fonts & Colors section, click Advanced….
  4. Change the Minimum font size to None.

Reset the page style

You may have inadvertently set the page style to No Style. To ensure Firefox is set to use the page's default style:

  • Press the Alt key to temporarily bring up the traditional Firefox menusOn the menu barAt the top of the Firefox window, click on the View menu, then select Page Style, then click Basic Page Style.

Now that the page is using its default style, it may be displayed correctly.

Check that JavaScript is enabled and not blocked

Some sites require JavaScript to display properly. JavaScript is enabled by default in Firefox, but to check its status:

  1. At the top of the Firefox window, click on the Firefox button and then select OptionsAt the top of the Firefox window, click on the Tools menu and then select OptionsOn the menu bar, click on the Firefox menu and select Preferences...At the top of the Firefox window, click on the Edit menu and select Preferences

    Click the menu button New Fx Menu and choose OptionsPreferences

    .
  2. Click to select the Content panel.
  3. Make sure that Enable JavaScript is checked.
  4. Click OK to close the Options windowClick Close to close the Preferences windowClose the Preferences window .

You should also 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.

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.

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.

Report the website

Occasionally you may come across a page that simply doesn't work in Firefox. If that happens, please report the problem to Mozilla as follows:

These instructions only work on the latest version of Firefox. If you are using an older version you should update Firefox.
  1. At the top of the Firefox window, click the Firefox button, go over to the Help menuOn the menu bar, click the Help menuAt the top of the Firefox window, click the Help menu and select Submit Feedback.... The Submit Your Feedback page will load in a new tab.
  2. Click on "Firefox Made Me Sad".
  3. On the Firefox Made Me Sad page that comes up, briefly describe the problem with the website, and enter the URL.
  4. Click the Submit Feedback button.
  1. Click the menu button New Fx Menu , click help Help-29 and select Submit Feedback.... The Submit Your Feedback page will load in a new tab.
  2. Click on "Firefox Made Me Sad".
  3. On the Firefox Made Me Sad page that comes up, briefly describe the problem with the website, and enter the URL.
  4. Click the Submit Feedback button.




Based on information from Websites look wrong (mozillaZine KB)



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