Would only be usefull, if you could download a whole folder...

What's with new update requesting additional and unnecessary permissions (Access your data for all websites, Access browser tabs)?

It mostly does what its supposed to do, however as a consequence of where it places the download button, it also blocks Pinterests own buttons from appearing. Also, the screenshot suggests that it places a button within the web page, but I think that is currently broken. Instead an toolbar icon must be used instead.