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.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

attachment id has bad format

  • 2 replies
  • 384 have this problem
  • 13 views
  • Last reply by cplbaldwin

lapuffstuff2
lapuffstuff2
more options

I get error message 'attachment has bad format id' when I'm try to sent a attachment in hotmail.com started when I upgraded to mac os x version 10.7

I get error message 'attachment has bad format id' when I'm try to sent a attachment in hotmail.com started when I upgraded to mac os x version 10.7

All Replies (2)

greggyboy
greggyboy
more options

Try removing spaces from the filename - that worked fine for me. Seems like one of the penalties of using Hotmail...

cplbaldwin
cplbaldwin
more options

Delete any traces of Silverlight from your HD, you will be able to send attachments normally thereafter.