Created attachment 8725264 [details] Gif showing the issue [Affected versions]: - latest Developer Edition 46.0a2 - latest Nightly 47.0a1 [Affected platforms]: - Windows 10 64-bit - Mac OS X 10.10.5 - Ubuntu 14.04 32-bit [Steps to reproduce]: 1. Start a conversation 2. Sent the link to another browser 3. Join the conversation 4. Exit the conversation from room creator (in order for the blue icon to appear) 5. Change the layout.css.devPixelsPerPx to 1.25 or above (No need for this step if using a hidpi screen, I used a Dell XPS with Windows 10 64) 6. Hover with the mouse over Hello icon [Expected result]: - Hello icon does not change its size and does not influence other items around it. [Actual result]: - Hello icon changes size upon hovering. On the Dell XPS, all the toolbar items move with the changing in size of the hello icon. [Regression range]: - This is not a Firefox regression but it reproduces starting with version 0.2.0 of Hello add-on. [Additional notes]: - Gif showing the issue on Dell is attached since I think that here is the worst behaviour across platforms.
Support for Hello/Loop has been discontinued. https://support.mozilla.org/kb/hello-status Hence closing the old bugs. Thank you for your support.