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Some websites won't load properly in Firefox but do in other browsers

  • 6 replies
  • 1 has this problem
  • 48 views
  • Last reply by FredMcD

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For a while now, some websites have not worked properly under Firefox, but since the last update I am getting even more problems. I have followed advice on this forum but nothing has worked. Is there anything I can do or must I stop using Firefox? I am using Firefox 78.5.0esr because my OS is Mac OS 10.11.6 and I can't update it as newer versions won't work with someof my programs.

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Glad to help. Safe Surfing.

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You did not list what you already tried, so . . . . Make sure you are not blocking content.

Start Firefox in Safe Mode {web link}

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


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


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.

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What content is blocked ?

You can check the Web Console (Tools -> Web Developer) for messages about blocked content and about the presence of mixed or unsafe content.

You can check the Network Monitor to see if content is blocked or otherwise fails to load.

If necessary use "Ctrl+F5" or "Ctrl+Shift+R" (Mac: Command+Shift+R) to reload the page and bypass the cache to generate a fresh log.

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I am having various problems. For instance, Captcha doesn't work, some websites don't work properly or don't open a window.

I have tried starting up in safe mode and that appeared to solve the problems. I then did a Refresh and restarted Firefox, but the problems were still there.

I've looked at web console, but that far too advanced for me. I tried looking at the network monitor while I clicked on a web page that doesn't work, but it only produced one line that doesn't seem to show any errors.

I've deleted cookies, cleared the cache, but just don't seem to be getting anywhere. Is it possible to regress to an earlier version of Firefox. It used to work fine and is my preferred browser, but it's no use to me as it is.

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It could be the work of one of your add-ons, or it could be Hardware Acceleration. How to disable Hardware Acceleration {web link}

Type about:addons<enter> in the address bar to open your Add-ons Manager. Hot key; <Control> (Mac=<Command>) <Shift> A)

In the Add-ons Manager, on the left, select Extensions. Disable a few add-ons, then Restart Firefox.

Some added toolbar and anti-virus add-ons are known to cause Firefox issues. Disable All Of them.

If the problem continues, disable some more (restarting FF). Continue until the problem is gone. After, you know what group is causing the issue. Re-enable the last group ONE AT A TIME (restarting FF) until the problem returns.

Once you think you found the problem, disable that and re-enable all the others, then restart again. Let us know who the suspect is, detective.

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Thank you Fred, that seems to have fixed the problem with at least one of the websites that stopped working correctly. It was caused by the Extension DuckDuckGo Privacy. I'm now waiting to see if any problems keep cropping up (especially the Captcha one) before marking it as Solved.

Regards, Edward

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Chosen Solution

Glad to help. Safe Surfing.

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