Ghostery breaks Outlook Web Access

[requiemmg]

Description

My work Outlook Web Access Account suddenly (around 2 or 3 months ago) started to throw generic errors. ("Unexpected error sending mail" or "Error 413 network connection not found") All email I sent to external adresses were rejected as Spam by an external mail-relay. This didd not happen when using Outlook (Full Client), another browser or when disabling Ghostery.

Expected Behavior

Normal usageof OWA.
Source code of email sent without ghostery looks like this:

Actual Behavior

OWA functionality impaired, Mails being sent rejected as Spam. Source code of sent mails modified:

There has been a related but not quite similar (closed) issue last year:
#132

Steps to Reproduce

Not sure if happens with all OWA accounts. In my case:
Login to OWA, compose and send a mail.

Versions

• Browser: Firefox 68.0 (happened with previous Versions)
• OS: Windows 10 x64 v 1903
• Node: ?
• NPM: ?

[christophertino]

This is related to #381 which was fixed in v8.4.1 for Firefox. It's currently pending review from Mozilla and should be available within the next few days.

[christophertino]

Fixed in v8.4.2