Slate: Firefox regressions

[mehdikazi]

Do you want to request a _feature_ or report a _bug_?

Bug

What's the current behavior?

This was initially reported on this PR, but thought it might be helpful to make a new issue for it.

You can see the following behavior on all the slate examples using Firefox:

1. Pressing arrow left or right does not move the selection.
2. Typing a character makes the selection jump somewhere else in the editor.

Video from PR - https://drive.google.com/file/d/1YcPlKy8PCiHnWIrpKx-3ttxmdGdGw2X-/view

[jonathannen]

Confirm this is occurring for me too (GIF below). My workaround at the moment is to use slate-react 0.22.4 which is using slate 0.47.4.

[macrozone]

can also confirm this happens on @react-page: https://github.com/react-page/react-page/issues/720

[devxom]

I can also confirm encountered a similar problem.

System info: MacOS 10.14.6 Firefox 69.0b14

1. The problem appeared after updating:
2. slate-react from 0.22.7 to 0.22.8

3. slate from 0.47.7 to 0.47.8

4. The symbolic deletion also broke when selecting a word. After the delete operation, a jump to the beginning of the section occurs. Also, a carriage change occurs when entering characters.

UPD: On the editor assembly with versions slate-react - 0.22.7 and slate -0.47.7 in production is currently working correctly.

[kaydelaney]

Made a PR reverting the changes that introduced the regressions, and (hopefully) also fixing the original issue without causing other problems. Would love some reviews if anyone has the time!
https://github.com/ianstormtaylor/slate/pull/2995
@ianstormtaylor

[projectLewis]

Can confirm what jonathannen said in that 0.22.4 which is using slate 0.47.4 are the last working versions in Firefox for me. slate-react - 0.22.7 and slate -0.47.7 as someone else mentioned did not work for me.

[ruanyl]

Can confirm the same issue on Firefox after upgrade slate to latest version