Yes, it’s a .svg.
No, I’ve never had a problem before.
I am running a MacBook Pro with latest Firefox. I clicked on the ‘upload’ button. As it has done dozens of times before, a window pups up for me to choose the file. I do so.
Immediately another dialog box opens, advising me that I can drag a file anywhere to upload it, or I can browse my computer for the file. This dialog has never appeared to me before. I chose the ‘browse’ option. That gives me the Finder window again. I click on the desired file.
That gives me another dialog box stating " We’re sorry, an unexpected error has occurred."
So I tried restarting the whole thing, this time dragging and dropping. Ended up with the apology again.
Closed the GFUI, re-opened. Same effect.
Ideas? Everything was working fine last night.