I've installed the rePub extension from the Chrome web store: https://chromewebstore.google.com/detail/repub/blkjpagbjaekkpojgcgdapmikoaolpbl
The extension creates an ePub from a web page.
Clicking on the extension button on any web page either shows a little percentage of up to 25% on the extension icon or doesn't do anything. The console log is empty.
I wasn't able to test the extension using compatibility mode as the "Allow" option in the Website settings dropdown doesn't seem to be applied when in compatibility mode. Changes there while in compatibilty mode seem to just be ignored unfortunately.
Pressing the button should either download an epub to the Downloads folder or alternatively upload the epub to the reMarkable device depending on the extension settings.
I've used this extension on Arc Browser for days and it works fine in both modes over there.
0.99.126.3-beta
Sonoma (14)