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I wrote my Add-on and I load it by "Load Temporary Add-on...". I want to use my own Add-on but every time I close my FF browser, my Add-on is uninstalled too. How do I keep my Add-on from being deleted when I close my browser?

I wrote my Add-on and I load it by "Load Temporary Add-on...". I want to use my own Add-on but every time I close my FF browser, my Add-on is uninstalled too. How do I keep my Add-on from being deleted when I close my browser?

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Did you verify that the extension is compatibility with current Firefox?

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You would either have to use Firefox 102 ESR or get the extension signed.