How/why did file index open in a browser window?
I saved an image (JPEG) appearing in a Firefox browser tab onto my Mac. Maybe I clicked something because the saved list of files on the left side of my Finder window briefly highlighted, but the only thing to "undo" was renaming the file, something I'd intentionally done.
When I went back to the first tab in Firefox which originally displayed the item I'd saved (also open in a second tab), the tab displayed the contents of what was stored in a file on my Mac. The address reads "file:///Users/. . ." It also shows that the last modified file is the ".ds_store" file at around the same time this happened. The folder from my local drive which appeared in the browser tab was not even the folder with which I'd been working.
What occurred? Why and how are my local files being displayed in a Firefox tab, and has anything been altered or gone missing on my local drive? Thank you for any help!