Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Trying to open an Microsoft Outlook email in a browser "Open in Browser" won't stop opening tabs

more options

Trying to open an Microsoft Outlook email in a browser "Open in Browser" Firefox won't stop opening tabs

Trying to open an Microsoft Outlook email in a browser "Open in Browser" Firefox won't stop opening tabs

Chosen solution

Normally it would not have Firefox as the default. That kind of information is typically gathered based on previously using Firefox for that file type.

You might be able to open an MHT in Firefox if you install an add-on: Mozilla Archive Format, with MHT and Faithful Save

Read this answer in context 👍 0

All Replies (9)

more options

Can you please have a look at the Firefox repeatedly opens empty tabs or windows after you click on a link article to check of anything mentioned there applies to your system?

more options

clicking on an web link from within my email works just fine. Its when I open an email and select "view in browser" that the tabs open out of control, continuously, until I am forced to close all tabs.

more options

OK, could you have a look at this related question?

more options

Hi walterramjet, please try the method of renaming/removing mimeTypes.rdf mentioned in the article linked in the first reply. That takes care of this sort of thing nearly every time.

Of course, Firefox may refuse to display the message after that, and you should NOT force Firefox to handle types of content it says it can't handle. Otherwise you will ge the same problem you posted about, an endless loop of "I can't" - "Do it anyway" - "I can't" - "Do it anyway" etc. etc.

more options

hi there! it sounds like what you are telling me is that firefox is not capable of "viewing email in browser" from Microsoft outlook and that if I want to do this, i should use a different browser. is that right?

more options

Hi walterramjet, it depends on the format of the file. If Firefox says it needs another program to display it, then it needs another program to display it.

more options

previously, I had "do this for files of this type from now on" checked, so it would just keep opening tabs. refreshing made it so it would stop and prompt me, but it doesn't hint at no being able to open it. it merely asks me if I want firefox to open it. see the picture.

more options

Chosen Solution

Normally it would not have Firefox as the default. That kind of information is typically gathered based on previously using Firefox for that file type.

You might be able to open an MHT in Firefox if you install an add-on: Mozilla Archive Format, with MHT and Faithful Save

more options

thank you! i must have needed that add on