it does not work on Firefox 57. I had to install Copy On Select https://addons.mozilla.org/en-GB/firefox/addon/copy-on-select/ But, thanks for your efforts. It used to work great and I hope you will fix it because I am worried about one of the permissions of Copy On Select: "Access your data for all websites". So, 5 stars for the good work when it worked.
I really like this addon but with my latest reinstall of Firefox it doesn't work with Google anymore. Every time I am on a Google search page the extension's toolbar icon turns from green to red. I don't have a clue as to why this is happening.
Ok, I figured it out. Somehow Google.com got added to the blacklist for this extension. I must have accidentally hit a key combination that added. Probably a bad idea to have a shortcut like that for this extension.
I used to use this addon a lot; I even felt addicted to it. However, since it has quit working with e10s, I have nicely readjusted to the old way and it's working nicely.
I was looking at prefs.js and saw all the custom settings for autocopy and came here to see if there was any update. Since it appears to have been abandoned, I will now go to about:config and reset all the user set entries for this so it will go away completely. ;-(
Such a wonderful add on but apparently, Firefox 50 broke it. I got it to work again by moving the icon to the toolbar but it broke again and I cannot get it to work again. It works great with Chrome. Are e10s the end of this awesome add-on?