[Fixed] TBP 3 keeps asking to make itself the default email client.

I try not to bump, but I figured after almost two months the topic went unnoticed (you know, at least it'd have been polite for someone to acknowledge it if they did see it). We're told not to post another topic for a question that already exists ("Search the forums!"), but the only alternative if you want the issue seen and the question hasn't been answered is to bump the existing topic. Damned if you do and damned if you don't, I guess...

It's still an issue in RC1. I actually already said that, but Chris deleted the post. That was the whole reason I bumped the thread in the first place, because the issue had gone without a response and hadn't been fixed in the new version. It was especially jarring not to see a response because John specifically told me to post the issue here in the first place, after I mentioned it on the TB3 Beta 4 release page. So I at least expected him to reply at some point to say whether or not he could reproduce it...

But like I said, I think it has something to do with the fact that Win7 doesn't include an email client at all, so Thunderbird sees there's no default and decides it's therefore free to take over. Obviously that's not the case, and it gets rather frustrating to have to cancel the prompt every time I run TB.

Just tried it, same result. Unchecking all except Feeds (for which TB is apparently forcing the association and won't let me uncheck--seems rather obnoxious) stops the prompt from coming up.

Here's my prefs.js after finally getting the prompt to go away:
[link removed by mod JTH. you should delete it from stashbox as well]