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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/

Greetings, Mozilla Community I'm contacting you to ask for help with a problem I'm having with Mozilla Firefox that comes up when I try to visit https://deraltersrechner.de/. It won't load, and I'm not sure if that's because of a bug in the website, a browser issue, or something else entirely.

Does anyone else have knowledge of this problem or recommendations for a fix? I've attempted removing addons and cleaning the cache in my browser, but the issue still exists.

I would be grateful for any advice or ideas on improving the usability of the website. Thank you in advance for your assistance.

Secure Connection Failed

An error occurred during a connection to integration-facebook.payu.in. The OCSP response is not yet valid (contains a date in the future).

Error code: SEC_ERROR_OCSP_FUTURE_RESPONSE

   The page you are trying to view cannot be shown because the authenticity of the received data could not be verified.
   Please contact the website owners to inform them of this problem.

I consistently get this popup when I click on most websites if I want additional information, or to see a more detail. I cannot find any way to get this thing to stop doing that. Does anyone here know about this problem, and to get this thing to stop like period? Thanks for the help....I hope, because it is a real pain. I was using Opera before this, and it never had something like this . Operating System-Windows 11. Browser-Mozilla.

this needs to be able to be disabled. I cannot view my reports on medicare.gov due to this security measure. Help and forums are not helpful.... It says just open in a new window, but if you do that, you have to log in and then it is not a new window, and will not open. Now I have to go another browser which irritates me to no end because I have used firefox always. There are many sites that have embedded information and reports that I would like to see, but cannot and they are perfestly SAFE. NOT ok firefox.

Some sites stopped opening, although in other browsers, and through the phone everything opens up. I've tried reinstalling the browser, disabling extensions, resetting DNS. It didn't help. A list of sites I'm having trouble with: https://www.deepl.com/ https://enka.network/ https://7tv.app/ https://hsr.hakush.in/ and some other sites that I can't remember right now. In Chrome he working. Sites like youtube twitch and other poplar working too, idk why firefox have problem, maybe its new update?

This is my crash report https://crash-stats.mozilla.org/report/index/9ff24288-5f5b-4ad1-ac89-2b1180240805 please help on how to solve this

captive portal detection has gone crazy - suddenly is popping up almost every time i go to a new site from my home pc on a secure att network ; it even pops up when i am already logged into a site & go to a new page; if this is a "feature" - tell me how to make it go away