Addon popup behavior inconsistentcy in firefox 49.0.1 released version and nightly builds

Add-ons
#1

We have recently published an extension on firefox store. We did most of our testing on nightly and developer builds (version 50.0a1). We recently tried to test our published extension on released version of firefox (49.0.1).

To our surprise, we observed bunch of css related issues on released firefox which were not present on nightly and developer builds. Some common issues are

  1. Addon Popup window not adjusting with size of the content inside it.
  2. Unnecessary Scroll bars in popup window
  3. Clicking on extension icon sometimes opens up multiple popup windows which corrupts the extension view altogether.

Is the firefox addon team aware of such issues present in firefox 49 ?
Given that these issues were not observed in developer & nightly builds, were there any fixes done between 49 and 50 release to address them ?

We looked at the firefox release schedule on https://blog.mozilla.org/futurereleases/2016/02/04/update-on-2016-firefox-release-schedule/. As per the blog, firefox 50 should be out by 8th November 2016. We plan to GA our firefox extension around end of november or after that.

So, can we safely assume the behavior of our extension observed in nightly and developer builds would be at par with firefox 50 ?

#2

I also experienced symptoms similar to those described above, which I described at http://stackoverflow.com/q/39050015/948073

#3

If you’re using WebExtensions for your add-on, it’s likely that those issues were recently fixed, and will make it to beta and release per our schedule. We post updates on WebExtensions fixes in the blog, so you may want to give it a look there.