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.

Getting two errors when opening attachments after updating to latest version of Thunderbird. First one is exception "cannot call openModalWindw on a hidden win

  • 1 reply
  • 7 have this problem
  • 1 view
  • Last reply by christ1

DCar
DCar
more options

After the last Thunderbird update 24.4.0, attachments no longer open. Attempt to open attachment flashes a message quickly but not long enough to read. I get the following errors in the error log with every attempt to open a document like word.

[Exception... "Cannot call openModalWindow on a hidden window" nresult: ox80040111 (NS_ERROR_NOT_AVAILABLE)" location: "JS frame :: resource://gre/components/nsPrompter.js::openModalWindow::line 382" data: no] resource://gre/components/nsPrompter.js

The second error is

TypeError: this._taskbar is null resource://gre/modules/DownloadTaskbarProgress.jsm

Under tools I have Word docs set to open with Microsoft Word. What are these errors and why can't I no longer open Word documents?

In addition I also receive multiple warnings at the same time such as Unknown property 'mso-style-type'. Declaration dropped. 

{mso-style-type:export-only;

Expected '{' to begin declaration block but found 'WordSection1'. @page WordSection1

DCar

After the last Thunderbird update 24.4.0, attachments no longer open. Attempt to open attachment flashes a message quickly but not long enough to read. I get the following errors in the error log with every attempt to open a document like word. [Exception... "Cannot call openModalWindow on a hidden window" nresult: ox80040111 (NS_ERROR_NOT_AVAILABLE)" location: "JS frame :: resource://gre/components/nsPrompter.js::openModalWindow::line 382" data: no] resource://gre/components/nsPrompter.js The second error is TypeError: this._taskbar is null resource://gre/modules/DownloadTaskbarProgress.jsm Under tools I have Word docs set to open with Microsoft Word. What are these errors and why can't I no longer open Word documents? In addition I also receive multiple warnings at the same time such as Unknown property 'mso-style-type'. Declaration dropped. {mso-style-type:export-only; Expected '{' to begin declaration block but found 'WordSection1'. @page WordSection1 DCar

All Replies (1)

christ1
christ1
  • Top 25 Contributor
more options

What happens when you save the attachment to disk and open it with Word?