Hi @aminomancer I recently found your repository and saw that it is possible to add some features to Firefox through javascripts (userchromejs). I am currently using the private tab script as there is no extension that provides such a feature.

Searching the web for a replacement for the tab scope extension that allows thumbnails on tabs I did not find anything similar.
Is there a possibility that a script could be written to show thumbnails on tabs? If so, could this script I found on the web be ported to work with the latest version of Firefox?

TabPreview.zip