Ubuntu has an irritating habit of turning off Firefox's middlemouse.contentLoadURL setting. Recently, it's got even worse - whenever I turned it back on, Ubuntu would immediately turn it back off for me. So, today I finally worked out that the problem was Ubuntu's "firefox extensions" - turned that off, and finally my contentLoadURL setting sticks...

Except, now I realise that the Firefox devs have crippled the behaviour anyway. The clipboard now has to contain a full URL, complete with the http://, or the middle click is ignored. Humph. What use it THAT??

OK, so I then found these instructions for hacking FF's internals, to recreate the old behaviour. Amazingly it works, but I'm starting to feel that they've got it in for me.