Can't access firefox. message states: a copy of firefox is already open. Only one copy of firefox can be open at a time
I am a Mac user and can no longer use firefox as a browser. The repeated message is that a copy of firefox is already open, but I am not using firefox now but rather Safari.
I am a Mac user and can no longer use firefox as a browser. The repeated message is that a copy of firefox is already open, but I am not using firefox now but rather Safari.