I'm a mutt user and I have always used iceweasel (firefox in debian) to view complex images-rich html mails; those kind of email that lynx or html2text cannot render in a reliable way.

I'm thinking to switch from iceweasel to chromium-browser (google chrome in debian) and one problem I encounter is on viewing html-mail from mutt inside the browser.

With iceweasel and the following line in the ~/.mailcap file, everything is ok,

text/html; iceweasel -new-tab %s; test=test -n "$DISPLAY"

but with chromium this is what happens

This webpage is not found.
No webpage was found for the web address: file:///tmp/mutt.html

In order to work with chromium I have to add a "needsterminal" to prevent mutt from erasing the temporary html-file to show before the browser has opened it.

text/html; chromium-browser %s; test=test -n "$DISPLAY"; needsterminal

in this way mutt wait for a key to be pressed to continue after the browser is opened, giving chrome the time to display the page.

Maybe iceweasel return to the calling process after the page has been opened, chromium after a sub-browser has been launched.

E.