Please use more than 1 scanner as each uses diff tech :

• https://support.mozilla.org/en-US/kb/troubleshoot-firefox-issues-caused-malware

Save your Report and google each before deleting anything as do not want to delete something you need, If need help :

• https://forums.malwarebytes.com/topic/9573-im-infected-what-do-i-do-now/

Uninstall any Bittorrent apps, uninstall cracked programs and delete cracks then Post in only 1 forum, then wait. Please let us know if this solved your issue or if need further assistance.

Looks like you may have a faulty keyboard, the space bar appears to be inoperative.

All drivers are working. Keyboard functions. Have uninstalled firefox. Will reinstall tomorrow and see what happens.

Please scan 1st : https://www.malwarebytes.com/

Reinstall with Current Release Firefox 62.0.2 with a Full Version Installer

• https://www.mozilla.org/firefox/all/