Created attachment 8826181 [details] Skärmavbild 2017-01-12 kl. 14.57.37.png User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.12; rv:50.0) Gecko/20100101 Firefox/50.0 Build ID: 20161208153507 Steps to reproduce: View a video, e.g. http://techslides.com/demos/sample-videos/small.mp4 Press cmd-i to show page info. Switch to media tab, select the video. Actual results: The video dimension is rendered as "¤¤¤px × ¤¤¤px". Expected results: The video dimension should be rendered as the actual size "480px × 120px" (or whatever the size is in the sample video).
User Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:50.0) Gecko/20100101 Firefox/50.0 Firefox: 50.1.0, Build ID: 20161208153507 I have managed to reproduce this issue on the latest Firefox (50.1.0) release and latest Nightly (53.0a1) build on Mac Os 10.11 and also on Windows 7. I have tested on a Firefox en-us build and the video dimensions are displayed as "NaNpx x NaNpx". For testing this I have used the provided URL in comment 0 and also with another video: https://goo.gl/WVOzft. Here is a screenshot with the issue: https://goo.gl/uvMynM. The dimensions were correctly displayed on Firefox 42.0a1. I have performed a regression and here are the results: Last good revision: 2ee9895e032c (2015-07-29) First bad revision: 62469b20ec84 (2015-07-30) Pushlog: https://hg.mozilla.org/mozilla-central/pushloghtml?fromchange=2ee9895e032c&tochange=62469b20ec84
Status: UNCONFIRMED → NEW
status-firefox50: --- → affected
status-firefox51: --- → affected
status-firefox52: --- → affected
status-firefox53: --- → affected
Component: Untriaged → Page Info Window
Ever confirmed: true
OS: Mac OS X → All
Too late for firefox 52, mass-wontfix.
status-firefox52: affected → wontfix
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