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Error opening P7M in thunderbird 91.6.0 64bit

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Problem opening P7M attachments. Below error log: Uncaught (in promise) Exception { name: "NS_ERROR_NOT_AVAILABLE", message: "Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIMIMEService.getFromTypeAndExtension]", result: 2147746065, filename: "chrome://messenger/content/msgHdrView.js", lineNumber: 1980, columnNumber: 0, data: null, stack: "open@chrome://messenger/content/msgHdrView.js:1980:35\n", location: XPCWrappedNative_NoHelper } ​ columnNumber: 0 ​ data: null ​ filename: "chrome://messenger/content/msgHdrView.js" ​ lineNumber: 1980 ​ location: XPCWrappedNative_NoHelper { QueryInterface: QueryInterface(), filename: Getter, name: Getter, … } ​ message: "Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIMIMEService.getFromTypeAndExtension]" ​ name: "NS_ERROR_NOT_AVAILABLE" ​ result: 2147746065 ​ stack: "open@chrome://messenger/content/msgHdrView.js:1980:35\n" ​ <prototype>: ExceptionPrototype { toString: toString(), name: Getter, message: Getter, … } msgHdrView.js:1980

Problem opening P7M attachments. Below error log: Uncaught (in promise) Exception { name: "NS_ERROR_NOT_AVAILABLE", message: "Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIMIMEService.getFromTypeAndExtension]", result: 2147746065, filename: "chrome://messenger/content/msgHdrView.js", lineNumber: 1980, columnNumber: 0, data: null, stack: "open@chrome://messenger/content/msgHdrView.js:1980:35\n", location: XPCWrappedNative_NoHelper } ​ columnNumber: 0 ​ data: null ​ filename: "chrome://messenger/content/msgHdrView.js" ​ lineNumber: 1980 ​ location: XPCWrappedNative_NoHelper { QueryInterface: QueryInterface(), filename: Getter, name: Getter, … } ​ message: "Component returned failure code: 0x80040111 (NS_ERROR_NOT_AVAILABLE) [nsIMIMEService.getFromTypeAndExtension]" ​ name: "NS_ERROR_NOT_AVAILABLE" ​ result: 2147746065 ​ stack: "open@chrome://messenger/content/msgHdrView.js:1980:35\n" ​ <prototype>: ExceptionPrototype { toString: toString(), name: Getter, message: Getter, … } msgHdrView.js:1980

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