**Affected versions** * 81.0a1 (BuildId:20200815093117) **Affected platforms** * Windows 10 64bit * macOS 10.14 * Ubuntu 18.04 64bit ( I believe that Ubuntu is affected as well.. Will get back with a confirmation on Monday). **Preconditions** * Ensure that the `print.tab_modal.enabled` pref is set to `true` **Steps to reproduce** 1. Launch Firefox. 2. Access the following [link](https://en.wikipedia.org/wiki/United_States). 3. Open the print preview. 4. Fastly switch between “Fit to page” & scale radio buttons. (Also try switching to different orientation options while doing this). **Expected result** * The print preview updates successfully. **Actual result** * The system dialog gets open & “An error occurred while printing” error message is displayed. **Regression Range** * This seems to be a regression: * Pushlog: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=4e6b4ef959560877408e46d85db19011b1ca5efe&tochange=5b4faf8f838301f19d6350f477dfd080ee6aeea8 * Potential Regressor: Bug 1657911 **Notes** * The following error is outputted inside the browser console: `TypeError: can't access property "hasAttribute", tab is undefinedLinkHandlerParent.jsm:46:15` * For further information regarding this issue please observe the attached screencast. * [Suggested Severity] S2
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**Affected versions** * 81.0a1 (BuildId:20200815093117) **Affected platforms** * Windows 10 64bit * macOS 10.14 * Ubuntu 18.04 64bit **Preconditions** * Ensure that the `print.tab_modal.enabled` pref is set to `true` **Steps to reproduce** 1. Launch Firefox. 2. Access the following [link](https://en.wikipedia.org/wiki/United_States). 3. Open the print preview. 4. Fastly switch between “Fit to page” & scale radio buttons. (Also try switching to different orientation options while doing this). **Expected result** * The print preview updates successfully. **Actual result** * The system dialog gets open & “An error occurred while printing” error message is displayed. **Regression Range** * This seems to be a regression: * Pushlog: https://hg.mozilla.org/integration/autoland/pushloghtml?fromchange=4e6b4ef959560877408e46d85db19011b1ca5efe&tochange=5b4faf8f838301f19d6350f477dfd080ee6aeea8 * Potential Regressor: Bug 1657911 **Notes** * The following error is outputted inside the browser console: `TypeError: can't access property "hasAttribute", tab is undefinedLinkHandlerParent.jsm:46:15` * For further information regarding this issue please observe the attached screencast. * [Suggested Severity] S2