I have a baffling Firefox (ver 64.0.2 (64 bit) problem. The keyboard's behavior is erratic when using Firefox to read news. It occurs *almost always* when browsing Goog… (read more)
I have a baffling Firefox (ver 64.0.2 (64 bit) problem. The keyboard's behavior is erratic when using Firefox to read news. It occurs *almost always* when browsing Google News, and *sometimes* with NPR news, StatesReports, and possibly others. Those are the three I read regularly.
Today, the misbehavior on both of my Windows computers, in both safe and normal modes: when Google News is launched, the "Up", "Down", "Left", and "Right" arrow keys do nothing except move a cursor around within page elements; the "Page down" & "Page up", work correctly, but the "End" and "Home" keys do nothing. At other times, successive presses of the page down will work correctly a couple of times, and the next press will perform a page up and the following press results in a page down then the next press results in another page up. This loop continues. From that point pressing the end key or the home key does nothing. At other times, the keys perform as expected. At still other times the Down arrow performs END, and Up arrow performs HOME. The HOME and END KEYS seem to move the cursor left and right within the element which has the FOCUS.
The Chrome browser works fine.
I have two computers running Windows 7 Professional. My laptop is a Lenovo X220. My Desktop is a homebuilt PC based on a Gigabyte motherboard. The laptop is a refurb bought from Amazon in August 2016 and came with Windows 7 professional installed. The PC's Win 7 was installed from a system builder "Intended for Distribution with a refurbished PC" disc about 2 1/2 years ago (June 2016). Both machines have been running without any significant problems until several months ago. Now both have the same problem, while another pc running linux mint does not have the problem.
I have restarted Firefox with add-ons disabled and the problem persists, so I don't believe it is caused by any of the add-ons. I swapped out multiple keyboards, checked both machines for malware using Malwarebytes, restarted Firefox and rebooted the computers several times, and tried running without Microsoft Security Essentials; I decided the Firefox profiles must be the source of the problem, so on Jan 12, 2019 I completely uninstalled/reinstalled Firefox on the PC and it worked fine (keyboard problem gone) so I did the same thing on the laptop, and it also worked correctly. I figured the problem was gone. Then, four days later (the 16th) the problem restarted, on both machines.
I am wondering if there might be a problem with a Firefox or Windows update, since the keyboard issue occurred at roughly the same time on both machines. It seems odd that both computers worked correctly for four days and simultaneously the problem restarted. I certainly don't want to reinstall Windows just to see if that helps.
Any advice will be greatly be appreciated.