User Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Firefox/52.0 Build ID: 20170627155318 Steps to reproduce: Since Firefox 54.0 web checkboxes (like filters for gmail as an example) render extremely small. They are unusable as you cannot tell if they are selected and appear as tiny pixels. There is a thread on Reddit about this as well here: https://www.reddit.com/r/linux/comments/6sd4ol/firefox_55_released/dlcgaql/ This problem started in 54.0 (Linux, Fedora for me) and is still reported in 55.0. I've moved to ESR temporarily until a fix can be found.

See checkboxes_too_small.png for an example of the issue. I am also attaching an image from Firefox ESR and 53.x where it does render correctly.

This might be related to the -moz-appearance setting in userContent.css ? http://www.jitblog.net/firefox-does-not-display-checkboxes-and-radio-buttons/ However, I've never changed these settings for years and it recently started having the checkbox issue.

Similar/dup: Bug 1386598

I can't reproduce this bug. Does it still occur for you in Firefox 57?

This still occurs for me on Firefox 56.0 (firefox-56.0-3.fc26.x86_64).

Hello, Just installed Firefox 57 (firefox-57.0-2.fc26.x86_64) and I am still having the same issue with tiny checkboxes.

Update: I can confirm that removing /home/USER/.mozilla/firefox/XXXXYYYY.default/chrome/userContent.css returns normal-sized checkboxes. Attached is my userContent.css above. This does not occur on the current Firefox ESR on version 54.x or prior.