eee-gads! We've had all-hands-on-deck for two weeks, dealing with a fast-changing Google Photos website.
What we needed to do was figure out some way to recognize when GP changes, without getting false negatives or false positives. Then, when GP does change, we have to re-code to accommodate the change. All this on four different browsers, three different operating systems, and four different stores.

Yet another update! Sorry!

For heaven's sake! Google Photos website has changed three times in the last twenty-four hours. It's hard to keep up. Version 2.9.1 hopefully will finally work on a stable Google Photos.

Version 2.9.0 is the latest version, and it corrects an error in 2.8.6 which mistakenly reports that Mimi needs to be updated.

Mimi 2.8.6 now works better with the latest version of Google Photos.
We've changed the progressbar: now it's at the bottom of our popup.