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Firefox loading local files extremely slowly

  • 8 replies
  • 0 have this problem
  • Last reply by cor-el

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Out of nowhere a couple days ago Firefox started loading local html files extremely slowly. I was using Live Server to render the pages, so I turned that on and off, uninstalled and reinstalled to no avail. I tried dragging files in from the original folder on my computer, but even that doesn't work. I tried updating firefox, and then my computer (which is running Fedora Linux 40), but still nothing.

When I try hitting inspect on the page, it only loads the HTML but doesn't let me inspect the JS as it wont load, and it's saying I have a ton of errors too. I can't look at the errors because they wont load, but I know it doesn't have to do with the original file as there was only one error which the page was working fine with before and each time I try opening the file it gives me a different amount of errors.

I tried clearing my cache and cookies, which didn't work either.

Does anyone know how to fix this? I'm having no other errors on other pages.

Out of nowhere a couple days ago Firefox started loading local html files extremely slowly. I was using [https://marketplace.visualstudio.com/items?itemName=ritwickdey.LiveServer Live Server] to render the pages, so I turned that on and off, uninstalled and reinstalled to no avail. I tried dragging files in from the original folder on my computer, but even that doesn't work. I tried updating firefox, and then my computer (which is running Fedora Linux 40), but still nothing. When I try hitting inspect on the page, it only loads the HTML but doesn't let me inspect the JS as it wont load, and it's saying I have a ton of errors too. I can't look at the errors because they wont load, but I know it doesn't have to do with the original file as there was only one error which the page was working fine with before and each time I try opening the file it gives me a different amount of errors. I tried clearing my cache and cookies, which didn't work either. Does anyone know how to fix this? I'm having no other errors on other pages.

All Replies (8)

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Does the Network Monitor (Ctrl+Shift+E) show any failed or blocked connections, or unexpected response codes?

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jscher2000 - Support Volunteer said

Does the Network Monitor (Ctrl+Shift+E) show any failed or blocked connections, or unexpected response codes?

Nope.

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FFiii said

jscher2000 - Support Volunteer said

Does the Network Monitor (Ctrl+Shift+E) show any failed or blocked connections, or unexpected response codes?

Nope.

Oh, wait, it's giving me error 101

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jscher2000 - Support Volunteer said

Hmm, I don't recognize. https://developer.mozilla.org/docs/Web/HTTP/Status/101

I may have gotten the number wrong, I closed the window right as it loaded. I reopened it to check again, and it hasn't popped up again but the page is still loading

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Unfortunately, the Network Monitor only starts capturing when you open it, so after reopening it you usually need to stop the page load and reload (Ctrl+Shift+R to bypass cache).

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I was right, it is error 101. I think this is an error with the code live server injects into the file, although it's still having issues with dropping the file directly into firefox. When I drag and drop it in it doesn't load at all, simply marking the URL as undefined, when I right click on the file and hit "open with firefox" it still loads slowly, this time firefox says MalwareBytes is slowing it down, then MalwareBytes blocks it, I disable MalwareBytes, and then it gives me the undefined error again

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What Firefox version do you use? Is that a special version like Snap or Flatpak?

You can try Firefox from the official Mozilla server if you currently use a version from the repositories of your Linux distribution to see if it behaves differently.

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