Tor "Gah. Your tab just crashed."

Tubleweed 20220305 KDE.I occasionally use the Tor browser but recently it constantly crashes. It starts up then opens with the message “Gah. Your tab just crashed.” After clicking the Restore button the same happens - even before I can enter a URL. I reinstalled tor and torbrowser-launcher and I changed the Mirror in the Tor Browser Launcher settings but the result is the same Tor is unusable. Any ideas anyone?

I came across an old firefox support link (https://support.mozilla.org/en-US/questions/1175046) . I followed thos instruction:
In the URL type about:config and press enter and click I accept the risk.
select browser.tabs.remote.autostart = true and change it to false
Restart Firefox/Tor browser.
Now Tor works again.