Thanks Samuel. As a follow up, I have filed
https://bugzilla.mozilla.org/show_bug.cgi?id=1370629

Lawrence

On Fri, May 19, 2017 at 9:22 AM, Samuel Ambaye <[email protected]>
wrote:

> We noticed the issue when one of our users reported a similar issue
> following a minor version ESR update:
>
> Using FF 45.9.0.6310 & Windows 7.
> (1) Start FF
> (2) goto this URL www.lematin.ch (newspaper in Geneva, Switzerland)
> Results: Browser waits for the page to load for two-three minutes to load
> (but would actually load);
> Results: Other browsers, No issue;
> (4) Close browser
> Browser hangs and requires a kill process.
> (5) Restart Browser and Try different web sites, even ones that were ok
> before;
> Results: Browser waits for web site for over two / three minutes;
> (5) Kill Process, Restart browser and repeat step 2 and 5:
> Same Result;
> (6) Kill Process, Replace FF user profile and repeat step 2 and 5:
> Same Result;
> (7) Uninstall FF for users who were affected; Install FF 52.1.0.6316
> Issue no longer reproducible
>
> We hope this helps.
>
> Best,
> Samuel
>
>
>
> >>> Jim Weill <[email protected]> 19/05/2017 00:17 >>>
> I notice the issue when I first open FF in the morning on Windows 7 Pro
> x64 machines.  After that I cannot come up with a reliable way to
> reproduce this issue, other than it happens at random times throughout
> the day.
>
> I do not notice this on Mac OSX 10.12 at all (we have a few of these).
> And I have not polled our Linux users on this issue, so I do not know
> where that stands.
>
> Is there something in the dev tools that I can leave open when this
> happens again to try to narrow this down?  I've had this happen several
> times today already.
>
> jim
>
>
> On 5/11/2017 11:51 AM, Phil Pishioneri wrote:
> > On 5/11/17 2:06 PM, Julien Cristau wrote:
> >> we've filed a bug at
> >> https://bugzilla.mozilla.org/show_bug.cgi?id=1361865 to investigate
> >> the issue reported in this thread. Unfortunately so far we haven't
> >> been able to reproduce this internally.  Does anyone on this thread
> >> have a reliable way to reproduce the problem you've seen?  If this is
> >> also reproducible with the non-ESR Firefox releases, knowing which
> >> version introduced it would also help narrow down the search.
> >
> > I've had very reproducible delays since (non-ESR) release 48. I found
> > it related to syncing of my (large) bookmarks. Whenever the sync
> > process starts (this can be "random", especially if a Firefox is
> > active on another host syncing to the same account), Firefox's UI
> > locks up for a few seconds. On a Mac, I get the spinning beach ball;
> > on Windows, I'll get the window title bar message about the process
> > not responding; I don't recall the behavior on Linux, other than
> > Firefox becomes unresponsive. Creating a new bookmark also starts a
> > sync (and, it'll start while the "Bookmark This Page" window is open).
> >
> > My circumvention was to find the host name being used for my sync, and
> > put in an override in my client's hosts file that maps the name to
> > loopback 127.0.0.1, then commenting that out and manually starting a
> > sync when I need it (then uncomment it again afterward).
> >
> > My multiprocess status is off on all of these platforms due to
> > incompatible extensions.
> >
> > -Phil
> > _______________________________________________
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