[FF] The caret appears at the top of the editor after right-click on the not focused editable

[Mgsy]

Steps to reproduce

1. Go to http://localhost:8125/ckeditor5-presets/tests/manual/article.html.
2. Don't focus the editor.
3. Right-click on the editor.

Current result

The caret has appeared at the top of the editor.

GIF

Other information

OS: Windows 10, MacOS X
Browser: Firefox
Release: 0.11.0

[scofalik]

The same will also happen if you focus toolbar and then click Tab. For some reason selection is incorrectly set before the first focus in editor.

[scofalik]

Actually, scratch that, FF just puts the selection in incorrect (for us, at least) place, when you focus the editable differently than left-mouse-key click. The same happens when you left click the editor, then click outside to blur it, click toolbar and use Tab.

[ma2ciek]

I've checked, that FF puts the selection (both focusNode and anchorNode) at the contentEditable, instead of the first paragraph or something else. Should we move the selection to the first element inside the editor if the editor is selected? I see, that there's no trouble with it in the CKE4.

[Reinmar]

There's a great chance that ckeditor/ckeditor5-engine#1151 will fix it.

[ma2ciek]

Oh, I didn't notice the PR.

[f1ames]

Also it happens when focusing widget (left mouse button) without focusing the browser window first:

1. Open Classic editor example.
2. Refresh browser window (e.g. ctr/cmd + r).
3. Click on image inside editor (it may require two clicks to focus image).

I just noticed it only happens with browser dev console opened.

[Reinmar]

#1010 also mention issues with an editor which contains only a <video>. It would be good to see where the editor places the selection in such a case. The only valid place will be around that video (if it's marked in the schema as an object).