Clear the cache and cookies
Clearing the cache and cookies can resolve issues with loading pages, slow performance, and log-in problems. To do this, click the menu button in the upper-right corner of the Firefox window, select “Options,” then “Privacy & Security” and find “History” in the drop-down menu. Click the “Clear History” button and choose the time range to clear.
Disable add-ons and extensions
In some cases, add-ons and extensions can cause Firefox to freeze or crash. To disable them, click the menu button, select “Add-ons,” then “Extensions” or “Plug-ins,” and disable any add-ons or extensions you don’t need. Restart Firefox to see if the issue is resolved.
Resetting Firefox can erase your bookmarks, saved passwords, and preferences, but it can also fix issues that aren’t resolved by clearing the cache or disabling add-ons. To do this, click the menu button, select “Help,” then “Troubleshooting Information,” and click the “Reset Firefox” button.
Always keep Firefox up to date with the latest version. New versions can fix bugs, improve stability, and provide security updates. To update Firefox, click the menu button, select “Help,” and click “About Firefox.” If an update is available, it will be downloaded automatically.
Check for malware
Malware or viruses can interfere with Firefox’s performance. Run a thorough virus scan on your computer using anti-virus software.
Disable hardware acceleration
In some cases, hardware acceleration can cause issues with Firefox’s performance. To disable it, click the menu button, select “Options,” select “General,” then scroll down to the “Performance” section and uncheck “Use recommended performance settings.” Deselect “Use hardware acceleration when available.”
Create a new Firefox profile
If none of these solutions work, create a new Firefox profile. This will create a fresh start for Firefox, and all settings, bookmarks, and add-ons will be deleted. To create a new profile, click the menu button, select “Help,” then “Troubleshooting information,” then click “Create a New Profile.”