Whenever I restart Firefox, my window names revert back to Window 1, Window 2, etc. Is this by design?

I tried using windows to manage my tabs before, but it was complicated to move around them. This window manager is the missing piece to this workflow, I'm really glad I stumbled upon it!

This is not getting enough love. I struggle with being able to group windows as well as tabs ...this is a better step in this direction than anything else I have yet found. While it does not actually group windows, the naming feature facilitates a manner of grouping.

For instance, I may have 500 tabs open in about 40 to 50 windows (I do lots of research and development in various fields). If I have several "news" groups open I can tag (adding a name) each window News1, News2, etc, ir even something like News1-tech, News2-politics, News3-foriegn aid research, etc etc.

Then I can
- move tabs between windows,
- search on the labels without Tab-WindowTitles of Tabs that are not currently the focus in a particular window cluttering up my search (I have Tabhunter for that)
...and there are a number of elegant management tools and settings that come with.

They deleted my old account here, I have been on Moz since the beginning, and am a coder. This is a work very well done, simple, and effective. thank you very much Lionel.