# FF57 browser.windows.create() displays blank popup window

**URL:** <https://discourse.mozilla.org/t/ff57-browser-windows-create-displays-blank-popup-window/22812>\
**Category:** addons.mozilla.org\
**Created:** [December 1, 2017, 12:16am UTC](https://discourse.mozilla.org/t/ff57-browser-windows-create-displays-blank-popup-window/22812 "2017-12-01T00:16:19Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![qiy](https://avatars.discourse-cdn.com/v4/letter/q/82dd89/32.png) [@qiy](https://discourse.mozilla.org/u/qiy)\
**Post date:** [December 1, 2017, 12:33am UTC](https://discourse.mozilla.org/t/ff57-browser-windows-create-displays-blank-popup-window/22812/2 "2017-12-01T00:33:06Z")

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Moved to addon/development section

> [@FF57 browser.windows.create() displays blank popup](https://discourse.mozilla.org/t/ff57-browser-windows-create-displays-blank-popup/22815):
>
> Hey add-on developers: My add-on calls browsers.windows.create() api to display a popup. However after the recent FF57 updates, the popup shows up as blank. I have to either right click or drag&resize the popup for it to display the content. Basically, this does not work correctly anymore in FF57: browser.windows.create({ ‘url’: ‘my-popup.html’, ‘type’: ‘popup’, }); Currently I’ve seen this issue on WIndows7, Windows10, Ubuntu(14.04.5). However, the problem does not appear on MacOS(High S…

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_[View the full topic](https://discourse.mozilla.org/t/ff57-browser-windows-create-displays-blank-popup-window/22812)._