Your comments

First, thanks for your work on this extension!

I had used this extension before and liked it - but probably hadn't noticed the permissions. On my new laptop, I've been trying out "Tabs Outliner" which does a lot of the same things but doesn't require the permissions that sidewise does ("Read and change all your data on websites you visit"). I like sidewise better but until the permissions are reduced I can't use it - there is way too much hacking online