Emojis and reactions not woring on Ubuntu 20.04 and Firefox 84

Summary

Reactions and emojis (buttons) not working when clicked. The window showing them doesn't open and the button doesn't react to the click.

I'm in an Ubuntu 20.04 and Firefox 84 64 bits.

Steps to reproduce

  • Open any issue
  • Click on the button (emoji)
  • Nothing works

Example Project

I'm seeing it throughout gitlab.com

What is the current bug behavior?

Clicking on the emoji for a reaction does nothing. The button is highlighted but no action occurs. Also the window is not opened.

Peek_2020-12-21_21-14

Similarly, if one clicks to award an emoji, instead of opening the window it just jumps to the top of the page.

Peek_2020-12-21_21-15

What is the expected correct behavior?

I would expect to see the emoji window and that the buttons react accordingly to the click.

Relevant logs and/or screenshots

See above.

Output of checks

This bug happens on GitLab.com