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SSL_ERROR_RX_RECORD_TOO_LONG

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For the past few days almost every site I try to visit gets the error:

Secure Connection Failed An error occurred during a connection to.... SSL received a record that exceeded the maximum permissible length. Error code: SSL_ERROR_RX_RECORD_TOO_LONG

this has happened on and off in the past for one or two sites but usually fixes itself within a day or less but this time it's been days. I tried everything I've seen online: -Try without add ons, - I am using 'system settings' proxy, -Followed an 8-yr-old suggestion of switching security.tls.version.max from 4 to 3 -My AV doesn't have HTTPS scanning that I can disable -It doesn't allow me to toggle the 'enhanced tracking is on' in the address bar -I've tried adding a site as an exception to DNS over HTTPS and turning Enable DNS over HTTPS off

Nothing has helped. These are all sites I've used in the past. I am using Nightly v150 at the moment but obviously same situation with FF or R3dfox.

If anyone can suggest how to bypass this so I don't have to use Edge/Chrome/Supermium (which all display these sites without issue) I'd appreciate it so much!

(*I'm looking for help with THIS issue on a W7 laptop, not about whether I should upgrade the OS.)

Thanks.

For the past few days almost every site I try to visit gets the error: ''Secure Connection Failed An error occurred during a connection to.... SSL received a record that exceeded the maximum permissible length. Error code: SSL_ERROR_RX_RECORD_TOO_LONG'' this has happened on and off in the past for one or two sites but usually fixes itself within a day or less but this time it's been days. I tried everything I've seen online: -Try without add ons, - I am using 'system settings' proxy, -Followed an 8-yr-old suggestion of switching security.tls.version.max from 4 to 3 -My AV doesn't have HTTPS scanning that I can disable -It doesn't allow me to toggle the 'enhanced tracking is on' in the address bar -I've tried adding a site as an exception to DNS over HTTPS and turning Enable DNS over HTTPS off Nothing has helped. These are all sites I've used in the past. I am using Nightly v150 at the moment but obviously same situation with FF or R3dfox. If anyone can suggest how to bypass this so I don't have to use Edge/Chrome/Supermium (which all display these sites without issue) I'd appreciate it so much! (*I'm looking for help with THIS issue on a W7 laptop, not about whether I should upgrade the OS.) Thanks.

All Replies (2)

Try to click the shield icon in the address bar and click Clear cookies and site data.

OTOH that Nightly is now a bit outdated, you'd want to upgrade further to see if anything changes. (Also, Nightly might have some HTTPS-first or TLS intolerance features flipped some way, so watch out for these…)

What's basically a first suspect usually is forcing non-HTTPS service to an HTTPS connection:

Tuna motuna

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