I have a question regarding the permission requests of the Simple Tab Groups extension by Drive4ik.

As I'm sure many of you know, this extension needs to:
This add-on needs to:

Download files and read and modify the browser’s download history
Monitor extension usage and manage themes
Display notifications to you
Access recently closed tabs
Hide and show browser tabs
Access browser tabs
Store unlimited amount of client-side data
Access your data for all websites

This add-on may also ask to:
Read and modify bookmarks

Theoretically, I find this extension useful but I am concerned about the "Access your data for all websites" requirement. I read through Mozilla's permission request messages for Firefox extensions documentation and it seems like granting this extension these permissions would be a huge risk for the work I do– investigative journalism. It seems like I'll trade organizational benefits for a wider attack surface.

Can anyone speak more about the risks involved with using this extension, the trustworthiness of the developer, and why it needs the "Access your data for all websites" capability?

Thank you.