Thanks for the reply and trying to help, but it's not an issue of getting it to work. I know exactly how to make it work: by reducing the security threshold of the browser. By default, the preference I mentioned is disabled, because with it enabled sites that aren't properly secure, like eBay, won't work, and it would cause too much confusion and frustration with people not being able to access those sites and not knowing why. I enable it to increase the security of the browser, and I know that all I have to do is disable it to get the site to work. The problem is, that shouldn't be necessary. I do a lot of web surfing, visit probably dozens, if not 100+ different sites, per month (per week even sometimes), and eBay is probably the only one I've had an issue with in the past few months since enabling the setting. I don't know what exactly is wrong with their encryption, though I would guess it's the use of 128-bit AES, which is not considered secure anymore, and a big site like eBay should know that and be well ahead of the curve, not behind it like they are. It's nothing to do with TLS. They use TLS 1.2, which is the most current protocol, and I limit my browser to 1.1+, though will probably limit it to 1.2 after a while (by default, most browsers still allow 1.0 even, despite it being quite unsecure, again to limit breakage). And I'm using an up-to-date, mainstream browser (Firefox) though, again, I know that's not the issue. If you use Firefox, you can see for yourself by enabling the preference I mentioned. The reason you don't experience any problems is because, as I said, browsers are by default not locked down as much as they could be, to limit breakage for the majority of people that would just complain about it and switch to a different browser with "weaker" settings.
I just wanted to bring it to their attention, and their technical staff can figure out the exact issue and fix it, assuming, again, that they even care. But it's irritating that even just to read a reply here, I have to open the browser's configuration, change the setting, reload the page, then change the setting back when I'm done in order to maintain the higher security for my normal browsing. So hopefully my pointing it out to them will give them the kick they need to update their encryption to meet current "standards" (as I said before, it may not be "unsecure," it's just not very secure; like having a lock on the doorknob but not installing a deadbolt, even though there's a pile of money inside in plain view from outside). And I probably wouldn't be so upset about it if they didn't have a blatant "don't care" attitude about users (based on my previous experience with them, which ended with me closing my account and opening a new one because they weren't doing anything) and the lack of any way to contact them about it.
