Julien L. Reporter
	Description • 9 years ago

User Agent: Mozilla/5.0 (Windows NT 6.3; Win64; x64; rv:41.0) Gecko/20100101 Firefox/41.0 Cyberfox/41.0.3
Build ID: 20151015115004

Steps to reproduce:

I simply went to www.free.fr and scrolling down with the mouse wheel


Actual results:

The menu bar of the website has disappeared at the top of the screen as you can see on the short video I attached


Expected results:

The menu should stay at the top of the screen, like when e10s is disabled.

	Loic
	Comment 1 • 9 years ago

I tested with FF44 (Nightly) with e10s on/off and the website menubar stay visible when scrolling down/up.
Could you test with Nightly, please.

	Julien L. Reporter
	Comment 2 • 9 years ago

(In reply to Loic from comment #1)
> I tested with FF44 (Nightly) with e10s on/off and the website menubar stay
> visible when scrolling down/up.
> Could you test with Nightly, please.

I made a test with nightly 44 (e10s on) and I got no problem.
Otherwise, I tested with firefox 43 and e10s on and the problem didn't occurred.
This is a non-constant bug unfortunately. (I didn't update firefox between the first test that opened that bug report and this later test).

	[:Towkir] Ahmed
	Comment 3 • 9 years ago

So, if you were using release version of firefox or something, you are trying to say that the bug is no longer reproducible after updating you browser, or what ?

	Julien L. Reporter
	Comment 4 • 9 years ago

In fact I notice that the bug appears in firefox 43 aurora when the html5 video ad for the movie "The Walk" or the product "phytologist 15" are displayed on the webpage.
With firefox 41 (which is not multiprocess) I get no problem with these ads.

	Loic
	Comment 5 • 9 years ago

You need to beta test e10s only with Aurora and Nightly because it's disabled (and incomplete) for the release version.

	Julien L. Reporter
	Comment 6 • 9 years ago

(In reply to Loic from comment #5)
> You need to beta test e10s only with Aurora and Nightly because it's
> disabled (and incomplete) for the release version.

Yes I make my tests of e10s only with Aurora edition. Don't worry :)

	Tracy Walker [:tracy]
	Comment 7 • 9 years ago

This works for me on Mac with latest builds of both Nightly and DevEd.

	Tracy Walker [:tracy]
	Comment 8 • 9 years ago

Julien,  is this occurring with the latest builds?  If so, please try in a clean profile or with all of your add-ons disabled, thanks.

	Julien L. Reporter
	Comment 9 • 9 years ago

(In reply to [:tracy] Tracy Walker - QA Mentor from comment #8)
> Julien,  is this occurring with the latest builds?  If so, please try in a
> clean profile or with all of your add-ons disabled, thanks.

With the latest builds, I tried in safe mode and I got no problem.
It 'may' be a bug of the website, but i'm not sure, because the bug doesn't appear now.

	Ryan VanderMeulen [:RyanVM]
	Comment 10 • 9 years ago

This WFM too. Let's close this out for now and reopen if it every shows up reproducibly again.

	Julien L. Reporter
	Comment 11 • 9 years ago

OK so it's a bug of the website. I had the issue with a NBA ad today with firefox 41 AND with Internet Explorer 11 !
So let this bug closed ;-)