User Agent: Mozilla/5.0 (Windows NT 6.2; WOW64; rv:20.0) Gecko/20100101 Firefox/20.0 Build ID: 20130409194949 Steps to reproduce: In the Windows 8 desktop running Firefox, on a system with multiple monitors and the taskbar only shown on one display. The Firefox window seems to block the Windows 8 hot corners on the display without the taskbar, while working fine on the display with the taskbar. Actual results: Hot corners not activating on display without the taskbar with firefox open Expected results: Hot corners should activate on any display no matter if the taskbar is present on that display with firefox open
WFM on Win 8, FF 23.0a1 (2013-04-29). Please check if the issue occurs using Firefox in safe mode: http://support.mozilla.com/kb/Safe+Mode Or on a new, empty profile (Don't install any addons into it) http://support.mozilla.org/en-US/kb/Managing-profiles#w_starting-the-profile-manager
I will close this bug due to lack of response from reporter.