Collate - Collation tool for Google Docs

doesnt seem to work for Brave, followed the instructions, clicked the extension icon, linked the active google doc, highlighted a text in a website to copy from; clicked on the icon again, it just opens up the extension window - no changes to the active google doc. Please advise

Need this. Bibliography is simple. This is state of art. Interested to see more from this developer. Meeting the need. More keyword, document combining tools for rad-writers. Please! Thank you so much for this start to a fabulous future in writings. Cheers.