Firefox-mienskipsfoarum

MY PROBLEM IS VERY SIMPLE:"IM TRYING TO OPEN A WEBSITE NAMED SLOW ROADSBUT ITS NOT OPENING AND IT SAYS INTERNAL ERROR 500 SO PLS HELP ME

THANK YOU!

Here's the error page I get from O'reilley Auto Parts when searching. (I don't get this error when on O'relley com, but ONLY when searching for a part and ONLY with Firefox on my desktop. This started just a few months ago. All ad blocks and U Block Origin are disabled):

https://www.oreillyauto.com/search/v/a/4649/automotive-car-1988-pontiac-fiero?q=oil+filter

Access Denied You don't have permission to access "http://www.oreillyauto.com/search/v/a/4649/automotive-car-1988-pontiac-fiero?" on this server.

Reference #18.8aa03b17.1772750536.8978d2fa

https://errors.edgesuite.net/18.8aa03b17.1772750536.8978d2fa

I had a mainstream company website start some of this months ago and now I seem to be getting more and more similar connection problems for other sites. My pc works just fine on nearly every other site so I just don't see it as my pc. I asked my ip and although I question whether they will help much but they did say nothing from their side. Yes I am up to date on ffox and OS. Clearing cookies does nothing. Some sites just say access denied, some will just never load or have some bs 'oops' or 'something went wrong' message. Chrome seems to mostly work but it may be goofy getting the sites working. These all used to work fine before. It does have the same or similar problem using other pc's on the same network. I can find nothing in my modem/router that is blocking anything. How do I find out what is wrong?

I can not figure out how to add a site to allow the location there is no i in the address bar but the site is all about location and I figured I not get a verification email to join the site since it is not on location so how do I add a site with no i site is called nextdoor.com

Two local home improvement store websites are denying access to searching or logging on to an account with them. I have cleared cash and removed cookies and that sort of thing but I have yet to change browsers... Should I do that?

Trying to Search on Homedepot.com site

Access Denied You don't have permission to access "http://www.lowes.com/search?" on this server.

Reference #18.aaed2117.1772475086.4a2c7ef8

https://errors.edgesuite.net/18.aaed2117.1772475086.4a2c7ef8

I have a problem connecting to the attached website. I have deleted both the cooking and cache for this website. I don't have a problem with the Chrome browser going to the same website. What do I need to do to get it working again on my up-to-date Firefox? Thanks!

Access Denied You don't have permission to access "http://www.marianos.com/?" on this server.

Reference #18.ea623017.1772457342.2758f08a

https://errors.edgesuite.net/18.ea623017.1772457342.2758f08a