Tab reopens to wrong webpage
I've been encountering some weird problem with reopening Firefox tabs. When I close the application and reopen it, all the previously open tabs come back again. However, sometimes when I click on a reopened tab and the tab reloads for the first time after restarting Firefox, it would direct me to a search engine instead (sometimes Ecosia, sometimes Google. No, I don't have plugins for either.). I can navigate to the previously open website by clicking the "Go back one page" button on the top left, but I'm still curious on why the new tab would be redirected to a search engine in the first place. Could it be because the indexing of tab histories is a bit off?
The misbehaving tab could have been at any webpage when I shut down Firefox. I've seen tabs previously at Wikipedia pages, Gmail, or even PDF documents being redirected to Google after restart.
Device is Mac Catalina 15.3 (i.e. the buggy version that still crashes my mail app over an entire half freaking year).