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Firefox can’t find the file at jar:file:///C:/Program Files/Mozilla Firefox/browser/omni.ja!/chrome/en-US/locale/branding/browserconfig.properties.

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  • Last reply by cor-el

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I have tried everything previously recommended from others including deleting all Firefox files and re-installing Firefox. This same error message keeps coming back. What can I do to not get this error message. Thank you.

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The browserconfig.properties file was used in older Firefox versions to set a localized homepage. This has been changed in Firefox 63 to have support for non-localized homepages, so seeing a reference to this file is likely a leftover from an older Firefox version.

You can check the homepage setting.

Firefox supports multiple homepages separated by '|' (pipe) symbols.