Firefox Developer Edition复制粘贴功能间歇性失效问题求助

Hey there, sorry to hear you're stuck with this copy-paste problem on your new MacBook Pro—this is such a frustrating hiccup, especially when you're just getting started with Firefox Developer Edition! I’ve seen several other users report similar issues, so let’s go through some practical fixes to get things working again:

• Check Firefox’s Clipboard Permissions
  Mac’s privacy settings might be blocking Firefox from accessing the system clipboard. Head to System Preferences > Security & Privacy > Privacy tab, then scroll down to find "Clipboard" in the left sidebar. Make sure Firefox Developer Edition is listed here and the checkbox next to it is ticked. If it’s not showing up, try fully quitting Firefox (Cmd+Q) and restarting it—sometimes that triggers the permission prompt.

• Restart Firefox and Your Mac
  Temporary glitches in background processes can mess with clipboard functionality. First, completely close Firefox (don’t just minimize it), then restart your MacBook. Once it’s back up, open Firefox again and test copying content to another app like Notes or TextEdit.

• Test in Firefox Safe Mode
  Third-party extensions might be interfering with the clipboard. To check this, launch Firefox while holding the Shift key—this opens it in Safe Mode, where all extensions are disabled. If copy-paste works here, you’ll need to narrow down which extension is causing the issue: go to Firefox’s extensions page, disable them one by one, and test after each disable until you find the culprit.

• Reset Clipboard-Related Firefox Settings
  Corrupted preferences could be the issue. Type about:config into Firefox’s address bar, accept the warning when prompted, then search for clipboard in the search bar. Right-click on any clipboard-related entries that have been modified (they’ll be bolded) and select "Reset" to restore them to default values. Be careful not to adjust any other settings here unless you know what you’re doing!

• Reinstall Firefox Developer Edition
  If none of the above fixes work, there might be a corrupted installation. First, back up your bookmarks, passwords, and other important settings (you can use Firefox’s built-in sync or export bookmarks to a file). Then fully uninstall Firefox, download the latest version of Firefox Developer Edition, and reinstall it.

If you still run into issues after trying these steps, it’s worth checking if there’s a known bug specific to macOS 10.13.4 and Firefox Developer Edition—other users might have shared workarounds in community forums.

内容的提问来源于stack exchange，提问作者xxPITYtheFOOLxx