Great add-on! After reinstalling add-on works fine.

I run Windows Task Manager all the time (to guide me in maintaining RAM usage below 80%). I tend to have 4-10 Firefox windows open; if careless, I allow enough open tabs (e.g., RAM usage) to slow or crash FireFox/Windows.
The ability to quickly save (~all tabs) and CLOSE a Firefox window, helps me avoid Firefox/Windows crashes.
On 6/24/2020, I discovered FoxyTab, which
allows me to quickly copy almost all
URLs (in the "current" window of FireFox)
to the clipboard, and then paste them into a file (to save "where I'm at" in the Firefox window). (Optionally, I usually include Webpage-Title for each tab.)
With FoxyTab, I can even do this fairly quickly for ALL my Firefox windows.
Afterward, I can winnow/add-to/rearrange the "tabs" within that file.
FoxyLink AddOn allows me to later restore (~all) those tabs within a Firefox window,
often after (to free-up RAM) I reboot FireFox and/or Windows.
I have found both FoxyTab and FoxyLink to be highly reliable, and reasonably straightforward to use, though I often have to review FoxyLink usage instructions; the two AddOns have slightly different orientations.

как сказать привычка

je vais essayé Foxy Tab

excellent concept and very useful and versatile.

все понятно и доступно, удобно пользоваться. спасибо.

Well, I've found that I forgot to click the add button...
But now I have a new problem.
When I set the nation and the time zone and then click the add button, Is the city displayed below not be able to be modified?
though the time is correct but the city isn't the one I want to be showed.
Is it possible to make us be able to customize it?

Outstanding. Kudos.
One suggestion/request if I may:
There is an option to copy urls to clipboard,
why not an option to paste/open urls from clipboard?
(Surely, new line separated.)