Hi Dev,
This Chrome extension is breaking Outlook OWA formatting tool.
You can try logging into outlook https://outlook.live.com or O365 and drafting a new email.
Select a word then change its font or size from pop-up or the side bar but outlook doesn't respond to it.

When using this extension, some pages are still able to detect the mouse leaving the page.

My guess is, that they are using the "mouseout", "mouseleave" and similar API calls.

This is frequently used to display a pop-up when a user tries to leave a page and can get quite annoying

Maybe this extension could also include blocking of tracking when the mouse leaves the page.

It's tagged with https://github.com/topics/firefox and available at both https://addons.mozilla.org/en-GB/firefox/addon/disable-visibility-api/ (and https://chrome.google.com/webstore/detail/disable-page-visibility-a/eecfoibnnhheckhfokpihgefmlnenofb?hl=en, which was linked in futpib/disable-page-visibility-api#1 (comment)) yet neither are mentioned in https://github.com/marvinschopf/disable-page-visibility-api/blob/5cc31afd95b6e044cc7a0fed37efe8431a62d452/README.md#disable-page-visibility-api.

somehow this extension breaks gitlab's search box.

repro: head to e.g. https://gitlab.com/gitlab-org/gitlab/-/issues, then click on the search bar. a popup opens:

clicking away from the search bar should close the popup, but with this extension installed, it doesn't.

some slightly painful experimentation with devtools shows that, yes, the blur event reaches the listener in disable.js before it hits the intended handleBlur listener. I guess this is because of the true argument to addEventListener?

if I'm correctly understanding what that does – "prevent any blur events on any element from reaching the page" – that seems like it would break a lot of things? is there a way to only block blur events that are in some sense attached to "the whole page" rather than a specific individual element?

It's not listed as https://addons.mozilla.org/en-GB/android/ compatible, so it has to be installed using the instructions outlined at https://blog.mozilla.org/addons/2020/09/29/expanded-extension-support-in-firefox-for-android-nightly/

Can you add white/black list feature?