Hey @Hanzzz81, good idea! I will build a Fibery Tweak that sets the tab favicon to the icon of the entity/ page that is currently open. However, in order to add the Javascript, I will have to release a new version of the Fiberflow Chrome Extension, which will take a couple of days.
In the meantime, I have already built a Fibery Tweak that adds the view name to the tab title (as requested here), which already makes it much easier to navigate many open Fibery tabs 
For example, if your view is called “All Tickets Table” and your page is called “Password reset not working”, the tab title will be “All Tickets Table / Password Reset not working” instead of only the page name.
You can install the Chrome Extension here: https://chromewebstore.google.com/detail/fiberflow/hdknidmopobhjmggglhnbikfgjngjnpp
