ORIGINAL: This extension is SO helpful! I especially like that you have provided a way to export/import the data so it will never be lost. Thank you so much! It is SO helpful to me that I would rate it at 10 stars, if I could! So kind of you to share it.
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EDIT: Recently, I stopped being able to view the OneTab list in Private Windows.

When I right-click the OneTab (save) icon and choose "Display One Tab", instead of displaying the OneTab list or adding the "Display OneTab List" icon (on the left) in my Private Window, Firefox opens a new, non-private window and puts the Display OneTab List icon on the toolbar at the left on the "new" window.

I DO have the the box checked to start up OneTab when the browser starts, and it used to, but it no longer does so. This has happened sometime within the last few weeks, I believe.

The "SAVE" icon still works in Private Windows, but I can no longer get the "DISPLAY LIST" icon to appear and can no longer display the OneTab list in a Private Window at all.

This renders the whole thing pretty useless to me now, since some of my web pages, plus my email site, ONLY work in Private Windows now, so I pretty much work in Private Windows most of the time.

Can you help?

Another question: I have a pdf of my data with more site info, from last year, but I don't remember how I got it??? Can you tell me how to do it again?

Thanks so much,
AnneF