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Recieving 403 errors in firefox but nowhere else

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  • Viimati vastas PavelkoT

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I often receive a 403 error when using Firefox Every time, before this happens, I get the unsafe website warning and then the 403 error when I continue anyway


I am using the latest version at the time of writing These errors only occur on my desktop PC I have tried to replicate this issue on both my phone (Android) and another laptop(Windows 11) but all the websites work normally on there.

I have tried the following, none of which have any effect:

  • Clearing cookies
  • using Troubleshoot mode
  • Restarting
  • Changing Useragent
  • Using "Forget about this site"

The following do fix the issue

  • Using a VPN
  • Using Google Chrome
  • Running Firefox in another profile

Going through the privacy and security tab and reseting all the settings sometimes works but only temporarily

The following are a few websites where the issue occurs

  1. https://kdice.com/
  2. https://latinitium.com/
  3. https://theysaidso.com/
  4. https://opensource.org/
  5. httpe://obsidian.rocks/
I often receive a 403 error when using Firefox Every time, before this happens, I get the unsafe website warning and then the 403 error when I continue anyway I am using the latest version at the time of writing These errors only occur on my desktop PC I have tried to replicate this issue on both my phone (Android) and another laptop(Windows 11) but all the websites work normally on there. I have tried the following, none of which have any effect: * Clearing cookies * using Troubleshoot mode * Restarting * Changing Useragent * Using "Forget about this site" The following do fix the issue * Using a VPN * Using Google Chrome * Running Firefox in another profile Going through the privacy and security tab and reseting all the settings sometimes works but only temporarily The following are a few websites where the issue occurs # https://kdice.com/ # https://latinitium.com/ # https://theysaidso.com/ # https://opensource.org/ # httpe://obsidian.rocks/
Attached screenshots

All Replies (1)

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Try Safe mode in Firefox. I guess an addon maybe a reason. Did you change options about about:config? There are countries where departments want to know more about citizens. Then there is no browser or addon issue here. Check your country for this.

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