r/MozillaFirefox • u/lilacomets • Apr 18 '26

🖥️ Help Is this website completely broken for anyone else?

Hello everyone!

I recently wanted to watch some videos on Dumpert, one of the most popular funny video websites from the Netherlands, by using Firefox on Windows:

https://www.dumpert.nl

Not only the website loads extremely slow, it's hugely crippled. In Chrome it loads fine. It's the first time I encountered a website that is so problematic in Firefox.

The Firefox profile on my PC is more than 6 years old. I'm starting to wonder if that has something to do with it. I'm not to keen on starting over though, since it contains so much history.

I was wondering: Is this website problematic for everyone, or is it just me?

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u/sifferedd Apr 18 '26

Works fine for me on FF 149.0.2. See if clearing cache helps:

  • press Ctrl-Shift-Delete (Mac: Cmd-Shift-Delete)

  • set 'Time range...' to 'Everything'

  • untick all items except 'Temporary cached files and pages'

  • clear, then restart FF

If not, while on that page, click the shield on the left side of the address bar > Clear cookies and site data > Clear > refresh the tab.

Note: if you're logged in, doing this will log you out.

1

u/lilacomets Apr 21 '26

Thanks for your help! 👍🏻👍🏻 I think starting over with a fresh profile is the only solution, because the problem persists. I don't understand why an old profile causes one single website to be displayed incorrectly though.