Requesting Firefox workaround for secure SleepyHead site

[Crimson Nape]

As of 6/10/2016, my Firefox won't access the OSCAR Official Download Page ----> CLICK HERE . site because it keeps coming up with an expired site certificate. I've tried deleting all references to it in the History section, deleting any site certificates, and tried modifying parameters in the about:config area. No matter what I do, it keeps coming up with this message:

"This site uses HTTP Strict Transport Security (HSTS) to specify that Firefox only connect to it securely. As a result, it is not possible to add an exception for this certificate."

I can access the site using Chrome and the standard "http" prefix.

Does anybody know what the workaround is in Firefox?

[FrankNichols]

Somewhere there is a place to set an exception to your network security level on a per site basis. Easier option is install Chrome and just use it when Firefox doesn't work.

[justMongo]

There is a FF extension called "Skip Cert Err"

[Crimson Nape]

There's no option to add an exception in this case. There is an "Advanced" button that displays the following information:

http://www.jedimark.net uses an invalid security certificate. The certificate expired on Friday, June 10, 2016 7:55 AM. The current time is Friday, June 10, 2016 9:46 AM. Error code: SEC_ERROR_EXPIRED_CERTIFICATE

Update: Thanks Mongo but "No Joy" using the add-on. I still get the block message. I have even tried both "sleepyhead/jedimark.net:80" and "jedimark.net:80" with the same error message.

[justMongo]

Hmm.. I just tried it; and I get the same message as you. (And, I am using FF 47.0)

[Crimson Nape]

Hmm.. I just tried it; and I get the same message as you. (And, I am using FF 47.0)

Me too!

[Crimson Nape]

OK! I finally got it working. Here's what I had to do. . . It's not totally painless if you use a lot of Add-ons and a custom layout. Help->Troubleshooting Information->Refresh Firefox

Problem solved.

I want to thank everybody for the help and confirmation of my problem.

[DeepBreathing]

I'm seeing the same issue with Chrome. I'll see if I can find a workaround.

[DeepBreathing]

I'm getting the same error on Chrome but none of the suggested fixes on the Chrome help page are working.

[SuperSleeper]

Temporary solution, see here:

http://www.apneaboard.com/forums/Thread-...workaround