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This article explains what steps to take if your clipboard stops working. The clipboard is the copy/paste/cut function.
Table of Contents
Clipboard never works
If the clipboard never works, you might be infected with malware. If the clipboard never works, even with Firefox closed, it is not a Firefox problem. Firefox does not allow and even prevents your computer from getting malware. If the clipboard never works only when Firefox is open, proceed to the next section.
Malware (malicious software) can prevent the clipboard from working. Some malware that causes the clipboard to never work are:
New.net is an extension that comes with certain software, including:
- RealNetworks (RealOne Player)
- Cydoor (LingoWare)
- Mindset Interactive (NetPalNow)"
- RadLight / Subtitle Studio
- UK Software
Clipboard sometimes works
If you do not have the current version of Firefox you need to update. For help, see Update Firefox to the latest version.
Rich-Text editors (gmail/yahoo)
Some Rich-Text Editors have copy and paste buttons that override this feature. This is because of security reasons, Mozilla does not want any sensitive information being pasted and than submitted without your permission.
If none of these solutions worked, try Troubleshoot and diagnose Firefox problems
Based on information from Clipboard not working (mozillaZine KB)