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Troubleshooting
Procedures to diagnose and fix problems

Troubleshooting

Procedures to diagnose and fix problems

In English

Troubleshoot Firefox issues caused by malware

How to troubleshoot security error codes on secure websites

Diagnose Firefox issues using Troubleshoot Mode

Troubleshoot and diagnose Firefox problems

Troubleshoot extensions, themes and hardware acceleration issues to solve common Firefox problems

Reset Firefox preferences to troubleshoot and fix problems

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