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Spacebar malfunction in Firefox.

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The spacebar does not move to make a space between words. I'm on an iMac with macOS Monterey (V 12.6), and a Magic Keyboard. Also, hitting the spacebar, while not actually typing anything, causes the entire window I'm in to expand and contract.

The spacebar does not move to make a space between words. I'm on an iMac with macOS Monterey (V 12.6), and a Magic Keyboard. Also, hitting the spacebar, while not actually typing anything, causes the entire window I'm in to expand and contract.

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That is a strange problem. Are there any simple forms where the space bar works, such as the ones on this site, or the search box on Wikipedia?

A little while ago a common commenting platform called OpenWeb that is used on multiple sites had a problem with spaces, but they fixed it. Here's one of those threads for reference in case your problem is in a similar context: https://support.mozilla.org/questions/1388487

Regarding the window resizing, does the Mac have any keyboard shortcut involving the space bar that would do that? For example, combined with the option/alt key or other modifier key? Sometimes Firefox may be confused about a modifier key being pressed. Jabbing the modifier key repeatedly may help Firefox get the message that isn't not pressed.