Closing Vim sometimes crashes app

In Tor Browser, opening the app, opening a folder, launching text editor on some file, then closing the text editor often makes browser to reload the page, losing session.

Navigated to https://dustinbrett.com/
Blocked https://dustinbrett.com/ from extracting canvas data because no user input was detected. _app-aea3b3505eafdf0f.js:1:388742
The resource at “https://dustinbrett.com/Users/Public/Icons/48x48/brain.webp” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. dustinbrett.com
The resource at “https://dustinbrett.com/Users/Public/Icons/48x48/doom.webp” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. dustinbrett.com
The resource at “https://dustinbrett.com/System/Icons/48x48/user.webp” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. dustinbrett.com
The resource at “https://dustinbrett.com/System/Icons/48x48/pc.webp” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. dustinbrett.com
The resource at “https://dustinbrett.com/System/Icons/48x48/shortcut.webp” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. dustinbrett.com
Navigated to https://dustinbrett.com/
Navigated to https://dustinbrett.com/
Error: Minified React error #130; visit https://reactjs.org/docs/error-decoder.html?invariant=130&args[]=undefined&args[]= for the full message or use the non-minified dev environment for full errors and additional helpful warnings.
    NextJS 31
framework-89f2f7d214569455.js:1:71382
Blocked https://dustinbrett.com/ from extracting canvas data because no user input was detected. _app-aea3b3505eafdf0f.js:1:388742
The resource at “https://dustinbrett.com/Users/Public/Icons/48x48/brain.webp” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. dustinbrett.com
The resource at “https://dustinbrett.com/Users/Public/Icons/48x48/doom.webp” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. dustinbrett.com
The resource at “https://dustinbrett.com/System/Icons/48x48/user.webp” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. dustinbrett.com
The resource at “https://dustinbrett.com/System/Icons/48x48/pc.webp” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. dustinbrett.com
The resource at “https://dustinbrett.com/System/Icons/48x48/shortcut.webp” preloaded with link preload was not used within a few seconds. Make sure all attributes of the preload tag are set correctly. dustinbrett.com

[vi]

Played more. Monaco seems to be very correlated to crashes, though crashes happen without it too, but rarely.

I got crash on closing Vim while also having two instances of Monaco open. Reproduced it two times (though second time was more contrived and involved prior closing of Monaco without a crash).

I remember crashes when closing file manager windows. Maybe they happened after Monaco closed before. Can’t reproduce it now though.

Reproduced without Monaco, but with juggling other text editors around (e.g. Vim and Marked) for enough time.

Cannot find a stable Monaco-less repro sequence. Sometimes you need large number of various actions.

[vi]

Reproducible in another Firefox 91.10.0esr (customized) as well. Does not seem to be reproducible in Chromium.

Not just Monaco - any window can crash when closed. Monaco is just for a stable repro.