If you always use a mouse instead of your Chromebook’s touchpad/trackpad, you can disable it to avoid accidental clicks.
I almost always use a mouse with my laptops. Chromebooks are no different. I have a wireless Microsoft mouse connected to my Chromebook as I write these words. With my old Windows laptops, I always disable the touchpad to avoid accidentally clicking or moving cursor while typing something.
This has never been an issue for me with Chromebooks and newer laptops, but if you are looking for such a feature on Chromebooks, there is a way.
This is a keyboard shortcut, to toggle trackpad on and off, but this is now behind a flag. A flag as you know can disappear when Chrome OS updates, so, remember that this keyboard shortcut might stop working in the future. It is also possible that this becomes an official feature and works without the flag.
Go to chrome://flags and look for Debugging keyboard shortcuts flag. You can reach this directly here too: chrome://flags/#ash-debug-shortcuts. This as the official description states, enables other keyboard shortcuts that are useful for debugging Google Chrome.
Restart your Chromebook (or scroll down to the chrome://flags page and click Restart) and you are all set to try the keyboard shortcut.
The Keyboard Shortcut to Disable Touchpad
Okay, so the keyboard shortcut to disable or enable the touchpad (or trackpad) is:
SHIFT + SEARCH + P
This toggles the touchpad on and off. Go ahead and give it a try!
Enable or Disable Your Chromebook’s Touchscreen
Now, here is a tip for those who have those fancy Chromebooks with touchscreens. The Debugging keyboard shortcuts flag enables a new keyboard shortcut to enable or disable the touchscreen really quickly. Here you go:
SEARCH + SHIFT + T
This can be really useful for those occasions when the touchscreen needs to be temporarily disabled for certain tasks.