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Firefox is blocking my college website, how do i change this?

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I'm trying to get into my online college courses that ONLY work with firefox, and its telling me that my college website ( https://mycourses.tstc.edu/ ). I must complete this ten hour course before AUGUST 22ND 2016 and if this is not fixed ASAP i can't start my classes at school.

I'm trying to get into my online college courses that ONLY work with firefox, and its telling me that my college website ( https://mycourses.tstc.edu/ ). I must complete this ten hour course before AUGUST 22ND 2016 and if this is not fixed ASAP i can't start my classes at school.

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What kind of block is it -- are you getting a specific message or error?

If Firefox is objecting to the site's SSL certificate, could you check whether the following article helps with that:

How to troubleshoot security error codes on secure websites