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There are isolated problems with current patches, but they are well-known and documented on this site. |
I am using Outlook 2016 for some of my email accounts. When I open some messages I get the following instruction, “If there are problems with how this message is displayed, click here to view it in a web browser.”
When I click on the instruction the email message opens in Internet Explorer 11.
How can I change Outlook’s default browser to Firefox?
Sorry to say, but I don’t think it’s possible. The “click here” in Outlook opens as an .MHT file.
There used to be a couple of add-ons (UnMHT, MAFF) which would allow Firefox to open an MHT file, but these are no longer available.
It’s currently an extremely poor part of the Office and Windows combination as old Edge and new Edge are also unable to open the MHT temporary file which Outlook creates to “view in web browser”.
I believe the only alternatives to IE11 (which Microsoft says we shouldn’t use) are Chrome or Word.
Start, Settings, Apps, Default apps, Choose default apps by filetype, .mht (MHT File), click Internet Explorer, Choose an app, Chrome or Word.
(Works for me from Outlook with Word; I don’t have Chrome to test but I think it’s just the same.)
Did you click on Internet Explorer there?
I tried it, and sure enough, the email opened in IE11, even though Firefox is my default browser. The only other choices offered for .mht files in “default apps by filetype” were Chrome (which I don’t have) or Word. So I found a .mht file, right-clicked, selected “Open with” and set it to always open with Firefox. Back to the email, selected “open in a web browser”, and Firefox started, but said it could not find the temporary .mht file and did nothing.
I never need to view an email in a web browser, but if I do, I guess it’s back to IE11 (or Word, which works, but of course is not a “web browser”). Seems like MS has its hooks into Outlook, IE11 and Word, but will not accept a “foreigner” such as Firefox.
Windows 10 Pro 64 bit 20H2
On the unmht page it says “This add-on is not compatible with your version of Firefox”.
The solution stands but you have to deactivate Firefox’s Multiprocess
Windows 10 Home v 1909. Office 2016 for Home and Business. Default Web Browser – Firefox, latest version.
Well, this is interesting. I have had the problem of the odd link within an Outlook email opening in IE11, and I just assumed that the source created their links in some ancient format. Most links opened with my default/Firefox browser.
I NEVER had a problem with the “If there are problems with how this message is displayed, click here to view it in a web browser”, opening in IE11 until today! It used to always open with Firefox.
What’s different? I just updated Office 2016 (ashamed to say I’d not updated for a long time), from version 11601.20144 to 12730.20250.
Just adding this … i wonder why Internet Explorer doesn’t show up in the Apps and Features list? Nor is it available from the Start Menu! If it doesn’t exist there, where is it and why is it being used?
If I go to the .mht file type to set the default, like the other users reported, I get a choice of Internet Explorer or go to the Microsoft Store for an app. That hasn’t changed. it’s become more of an issue now that Office has been updated.
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