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Step 1
Check for updates manually. Open Mozilla Firefox (see Resources below). On the tool bar click "Help" then "Check for Updates." If the link is disabled in Linux, your distribution controls the upgrades. Use your distribution's package management utility to update Firefox.
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Step 2
Turn automatic updates on. On the tool bar click "Edit," then "Preferences" and then "Advanced." Click on the "Update" tab.
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Step 3
Check "Automatically check for updates to Firefox" to have Mozilla check for updates on a regular basis. You can also choose to have Mozilla check for updates to installed add-ons and search engines.
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Step 4
Check "Warn me if this will disable extensions and themes" to receive a warning if the upgrade might corrupt your add-ons.
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Step 5
Click the "Show Update History" button to see a list of previously installed updates.














