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Firefox crashes when printing is requested.

  • 8 replies
  • 1 has this problem
  • Last reply by cor-el

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This will always happen with the Epson TM-T20 printer after successfully printing approximately 40 receipts. After restarting Firefox the problem is repeated.

The printer driver is the latest version 5.09E of 2018-01-15 but the driver version does not affect this issue.

I have tested individual versions of Firefox with factory default settings. This problem first appeared in version 50.0b1. Firefox 49.0.2 and older work well with this printer.

Report ID: adb395a3-273d-41ee-a686-2d1530180419

Can you help me please?

All Replies (8)

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In the address bar, type about:crashes<enter>. Note: If any reports do not have BP- in front of the numbers/letters, click it to submit them.

The crash report is several pages of data. We need the report numbers to see the whole report.

Using your mouse, mark the most recent 7 - 10 crash reports, and copy them. Now go to the reply box and paste them in.


For more help on crash reports, see;

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bp-0942a254-f0b8-402c-ba83-53d490180421 21.04.2018 17:50 bp-adb395a3-273d-41ee-a686-2d1530180419 19.04.2018 11:38 bp-4c044467-d345-42f7-b495-ea5890180415 15.04.2018 15:30 bp-b09d49f1-261f-4fc3-80bb-80d840180409 09.04.2018 16:41 bp-4687686f-d643-46b0-b0a8-4ccfd0180402 02.04.2018 14:42 bp-b423bae6-9944-4cb5-b029-155bb0180331 01.04.2018 0:48

...that's all from one computer. I have more computers with the same problem.

Modified by cor-el

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hi, can you check again with firefox 60.0b15 which is released next tuesday? it should contain a fix for the kinds of reports you've listed there:

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Thank you. I will test it as soon as it is available for download.

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Problem is still here.

I have installed release 60.0b15 (on page About Firefox is 60.0b14 ???).

Now Firefox does not crash total. It gives me alert: printer error – an error occured while printing. Then the printer does not print anything. I have to restart Fireffox if I want to print something else.

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thank you, i think the best way forward then is to file a bug for the issue at so that it gets to the attention of the developers.

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Thank you. Before I file a bug at the bugzilla I did another test:

I created a simple web page containing only character 1 (no html tags). After 34 successful print requests the error message appeared. It seems that the problem is not in content of web pages but in count of print requests.

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These crash report are OOM (out-of-memory) reports where not enough contiguous free memory is available.

You can try to increase (double) the virtual memory.

Total Virtual Memory : 2,147,352,576 bytes (2.15 GB)
Available Virtual Memory : 220,590,080 bytes (220.59 MB)
Available Page File : 673,804,288 bytes (673.8 MB)
Available Physical Memory : 286,654,464 bytes (286.65 MB)
System Memory Use Percentage : 85
OOM Allocation Size : 1,162,839 bytes (1.16 MB)