Firefox does not load-multiple copies prevent
Firefox does not load it says another Firefox is open and must close - or, it does not load at all, only a tab. I have taken this to the Geek Squad and they couldnt figure it out either even after reloading the browser. nancy
Tất cả các câu trả lời (1)
Step one would be a reboot.
Make sure you close the browser using;
Windows: Menu > File > Exit
Mac: Menu > Firefox > Quit Firefox
Linux: Menu > File > Quit
Some users have reported issues when closing the browser using the X upper-right of the window.
https://support.mozilla.org/en-US/kb/firefox-already-running-not-responding
https://www.basezap.com/cant-open-firefox-because-a-copy-of-firefox-is-already-open-mac/