User Agent: Mozilla/5.0 (Windows NT 10.0; WOW64; rv:40.0) Gecko/20100101 Firefox/40.0 Build ID: 20150826023504 Steps to reproduce: If I try to copy paste some text in a youtube comment, I can't. Using Chrome there are no issues. I just did a complete refresh of Firefox, I deleted the profile, and afterwards I deleted all cookies, cache and all that, in hope of it fixing it. It didn't not, and then I tried the Firefox developer version, and I also downloaded the latest nightly. The problem also occurred in those . Actual results: Nothing :) Expected results: Should be able to paste :(
I might add, that it's a problem with both CTRL+V and right-clicking in the comment box, and select "paste".