Mozilla VPN is currently experiencing an outage. Our team is actively working to resolve the issue. Please check the status page for real-time updates. Thank you for your patience.

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Firefox keeps pressing "left arrow"

more options

For example, when I open a window that's too big for my display or try to view a big image file in a window, it scrolls right. When I press CTRL or ALT, the keyboard shortcut for CTRL+Left Arrow (increases window size) and ALT + Left (back one page, but really back ALL the pages :P ) Arrow keep getting activated. I can type just fine in the window and in the URL bar, I just can't select any shortcut because the constant "left"-ing makes the shortcuts/saved searches/passwords unselectable.

Can someone please help? I closed and restarted Firefox, I disabled any add-ons (Video Download Helper and uBlock Origin are all that I'm running) and still this keeps happening. As someone who uses keyboard shortcuts a LOT, this is quite frustrating.

For example, when I open a window that's too big for my display or try to view a big image file in a window, it scrolls right. When I press CTRL or ALT, the keyboard shortcut for CTRL+Left Arrow (increases window size) and ALT + Left (back one page, but really back ALL the pages :P ) Arrow keep getting activated. I can type just fine in the window and in the URL bar, I just can't select any shortcut because the constant "left"-ing makes the shortcuts/saved searches/passwords unselectable. Can someone please help? I closed and restarted Firefox, I disabled any add-ons (Video Download Helper and uBlock Origin are all that I'm running) and still this keeps happening. As someone who uses keyboard shortcuts a LOT, this is quite frustrating.

All Replies (1)

more options

That sounds really annoying. When did this start?

I'm wondering whether Firefox somehow is misinterpreting signals from your keyboard, mouse, or touchpad. If you haven't already, it may be worth doing a normal shutdown and restart of Windows.

When I press CTRL or ALT, the keyboard shortcut for CTRL+Left Arrow (increases window size) and ALT + Left (back one page, but really back ALL the pages :P ) Arrow keep getting activated.

I wasn't aware that Ctrl+Left Arrow did anything in Firefox. Are you saying on yours it resizes the window itself (presumably for a resizable window rather than a maximized window) or the content within the window (like zoom)?