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Erreur d'analyse XML : entité non définie
Emplacement : chrome://browser/content/browser.xul
Numéro de ligne 1573, Colonne 15 : <menuitem id="menu_openPermissions"
I've searched this forum for "browser.xul" and found one thread from January 2016 that cites a similar message but that instance of PM, while said to be broken, was at least loading and was somewhat useable, so it seems to be a different situation.
What should I do?
I saw in the "Manual installation" instructions that the first step would be to uninstall. Wouldn' that delete the profile as well?
Any clues would be much appreciated.