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 > _______________________________________________ > Enterprise mailing list > [email protected] > https://mail.mozilla.org/listinfo/enterprise > > To unsubscribe from this list, please visit > https://mail.mozilla.org/listinfo/enterprise or send an email to > [email protected] with a subject of "unsubscribe" _______________________________________________ Enterprise mailing list [email protected] https://mail.mozilla.org/listinfo/enterprise To unsubscribe from this list, please visit https://mail.mozilla.org/listinfo/enterprise or send an email to [email protected] with a subject of "unsubscribe" _______________________________________________ Enterprise mailing list [email protected] https://mail.mozilla.org/listinfo/enterprise To unsubscribe from this list, please visit https://mail.mozilla.org/listinfo/enterprise or send an email to [email protected] with a subject of "unsubscribe"

