Found out why OneTab wasn't working entirely by accident. Still disappointed by the lack of response from the devs. If anyone else has an issue with OneTab not loading, though, try this:

"I'd changed 2 settings in about:config

image.webp.enabled was set to false (default true)
image.http.accept was set to "*/*" where the default was "image/webp,*/*" - all without the quotes"

I found this for a seemingly unrelated problem with YouTube thumbnails not loading, but sure enough it also corrected my OneTab issue. No idea how the settings were changed in the first place.

我的标签丢失几百个,找回几十个...日常使用,在工作上有风险

Very useful !
One suggestion : to move only a group of selected tabs, i select them, then move to a new windows, and then click onetabs
Can you add the fonction to do that in one clic please ?

希望能让用户自定义工具栏按钮的功能。

Co raz częściej z trudem wczytuje listę zapamiętanych kart.

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

I love it but to eavy for my old PC

Only one problem, i cannot readily reopen whole group of tabs that i saved from the private window back again into the private window

It is good, but it needs still be improved...

В Firefox команда "восстановить все" открывает все в новом окне... прошу прощения, настройки находятся во вкладке со списком группировки...