Rated 5 out of 5 stars
Handy little addon that allows me to print much more quickly and easily than the default FF method.
ONE PROBLEM is that on FF Dev Ed (40.x), with e10s enabled, using RC Print will crash all the open tabs. Disabling e10s, or disabling this addon, will remove the problem. I would have added a post to the support site but the link wasn't working. Hopefully this can get rectified before 40 hits release.
14 June 2015: Just re-enabled this, and the problem on FDE 40 still persists. No word from the addon developer on this.