default browser in Outlook

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This topic contains 2 replies, has 2 voices, and was last updated by Avatar redearl 2 years, 9 months ago.

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    I’m having an issue changing the default Browser in Outlook 2016, running on windows 10.
    if I open a mail message, and click the open in a browser, it opens WORD by default.
    I’ve set my browser (Firefox) as the default, and done all the other things that i can find on changing it within outlook.
    it still opens WORD.
    Any one have any ideas


    I’ve had a look at my system and it appears that when you open the attachment it will open it as a .mht attachment

    C:Userswullieb1AppDataLocalMicrosoftWindowsINetCacheContent.OutlookSSFE19PSemail (003).mht

    Go into the Default Apps by file type and set this to IE or Firefox and see if that resolves it.


    Thank you for the reply.
    I tried that, and it caused other errors.
    File not found, the path it listed did not exist, so some thing else is screwed up..
    Here is the path /C:/Users/XXXXxX/AppData/Local/Microsoft/Windows/INetCache/Content.Outlook/S91YWTG0/email.mht.that is reported in Firefox.

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