If you are the one who likes to play with registries in Windows by adding new keys, then each time you may need to open the registry editor to add the keys. Open In RegEdit is a simple Firefox Ad-on which enables you to open registry keys directly from Firefox.

If you want to enter any key directly to registry, then select it, then right click  and select the  option “Open In Regedit”.

Download Open in Regedit Add-on

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