Sleazy Fork

i get a firefox error message of "Greasemonkey is slowing down Firefox." this happens when in thumbnail view, if i click on a gallery and then go browser back to the thumbnail view page. ive turned off all other scripts so ive isolated it to just ehxvisited. im also using it just for the viewed gallery highlighting so ive unchecked all the other settings.

in case anyone else has this issue, i installed the script in tampermonkey and it fixed the issue