Re: cant launch bf3 from browser
I know this is a necro thread but I had the same issue today after not playing for over a year. None of my browsers would launch a game even after installing the plugin. I checked my website settings and they were set to no plugin game launch. I unchecked that box and then using IE 11 I tried launching a game from battlelog. This time it offered the plugin installer which I allowed to run and then my game launched like normal.
Since all of the latest browsers don't allow plugins anymore IE is the only one that I have that will work with this setup. EA was dumb to not have a proprietary launcher built into the game shoving it off to a web browser. Installing the plugin by itself then attempting to launch a game always failed. Chrome, FF and Edge chromium won't work at all with this setup leaving IE as the sole browser to play BF3..