In safe mode and with all plugins disbled recreate the problem by printing and then navigate to about:crashes and let us have the crash ID (begins bp-) please paste that into your reply.

Note the Crash ID is converted to a link by forum software after the post is made.

We're sorry to hear that Firefox is crashing. In order to assist you better, please follow the steps below to provide us crash IDs to help us learn more about your crash.

1. Enter about:crashes in the Firefox address bar and press Enter. A Submitted Crash Reports list will appear, similar to the one shown below.
2. Copy the 5 most recent Report IDs that start with bp- and then go back to your forum question and paste that into the "Post a Reply" box.

Thank you for your help!

More information and further troubleshooting steps can be found in the Troubleshoot Firefox crashes (closing or quitting unexpectedly) article.

I'm so sorry to hear that Firefox is crashing when printing from scotiabank.ca. In order to assist you and your client better, please provide us with the crash IDs like John99 has mentioned.

Thanks!