Hi All I've tested this again on my work machine which is running Windows 7 with a quad core Xeon processor and 8 Gigs of RAM. So it's no antique or underpowered box.
Unfortunately the problem persists. It may be less dramatic but essentially with all add-ons (except Firebug) disabled, then after restarting, turning Firebug on and switching to (and perhaps from) tabs with Firebug running, causes a 100% CPU spike. I've even set processor affinity to one core to isolate the testing and no doubt about it, the Windows Task Manager performance tab graphs show three-four second processor spikes. A very quick scan of the topics in this group *appear to* suggest I'm not alone in seeing similar circumstances. Perhaps there's a bug that started to surface in (very loosely) Firefox 23/4 ish and has only become worse in Aurora builds? My current setup is: Aurora 25.0a2 (2013-08-28) Firebug 1.12.0b7 In case it helps, about:buildconfig contains this link: http://hg.mozilla.org/releases/mozilla-aurora/rev/ae376878a3ec I'd be willing to to attach the about:support information if I can be sure it's reasonably privacy neutral and you think it might help. At this stage I cannot really commit to doing a test with a reset or fresh profile as I can't quite afford the potential disruption to my development work, as strange as that sounds when Firebug is causing 3-4 seconds lags every time I try to use it :) Best of luck looking into the issue, let me know if I can help. On Thursday, August 22, 2013 6:59:40 PM UTC+10, pd wrote: > > Unfortunately on my home machine I've just experienced ever weirder > problems. Firebug seemed to insist upon opening on every page and > re-opening on every reload, near as I can tell, in between 100% CPU usage > every time. I upgraded to 1.12.0b7 now and thankfully after a restart > things seem to have settled down. > > The problems I initially described were on my work machine which I'll be > back in front of in about 16 hours so I'll check out whether 1.12.0b7 has > improved the situation and then, if not, try investigating potential > extension conflicts. > > On Thursday, August 22, 2013 5:41:39 PM UTC+10, Sebastian Zartner wrote: >> >> Looked like a duplicate of issue >> 6086<http://code.google.com/p/fbug/issues/detail?id=6086>, >> so I merged them. I still can't see that massive slowdown as you both >> describe it, even when it is noticeably slower when switching to a Firebug >> enabled tab. >> This will be gone as soon as issue >> 5421<http://code.google.com/p/fbug/issues/detail?id=5421>is done. >> >> Sebastian >> >> On Thursday, August 22, 2013 9:08:21 AM UTC+2, mindrones wrote: >>> >>> Hi, >>> >>> reported: http://code.google.com/p/fbug/issues/detail?id=6688 >>> >>> Regards, >>> Luca >>> >>> >>> >>> On 20 August 2013 12:00, mindrones <mind...@gmail.com> wrote: >>> >>>> Hi, >>>> >>>> I have this problem too since Firefox 24.0b1 with Script panel enabled, >>>> while in FF 23.0.1 all goes normally (Mac OSx 10.7.5). >>>> >>>> Tested with Firebug 1.11.4 and 1.12.0b6. >>>> >>>> Here's what happens, assuming you're visiting for example >>>> http://www.mozilla.org/en-US/firefox/fx/ (from here on, [1]). >>>> >>>> >>>> 1) Script panel disabled >>>> >>>> - Open a tab, visit [1] >>>> - The page loads quickly >>>> - Toggling Firebug on/off is fast >>>> >>>> - Enable the Script panel >>>> - Firefox hangs (CPU 100%) for many seconds before the Script panel >>>> shows some content >>>> - Reloading the page is a bit slow, but nearly normal >>>> >>>> now >>>> >>>> - switch to tab serving a page from a different host, say Gmail, where >>>> Firebug is not enabled >>>> - it takes a bit, say a couple if seconds >>>> - switch back to the tab serving [1] >>>> - Firefox hangs (CPU 100%) for many seconds >>>> >>>> >>>> 2) Script panel enabled, Firebug not enabled for [1]: >>>> >>>> - Open a tab, visit [1], it loads quickly >>>> - Open Firebug >>>> - Firefox hangs (CPU 100%) for many seconds before Firebug appears >>>> - After Firebug has appeared for that page, toggling it on/off is fast >>>> >>>> now, >>>> >>>> - Close Firebug in this tab >>>> - Open a new tab, visit [1] >>>> - The page loads very slowly, *even if Firebug is closed in the other >>>> tab*, and indeed Firebug does not appear in this new tab >>>> - BUT opening Firebug is very quick!, like we were still in the >>>> previous tab >>>> - From here on, toggling Firebug off/on in this new tab is fast >>>> >>>> - This happens on every new tab visiting [1] >>>> >>>> >>>> NOTE that unlike a slowdown I've experienced some time ago, this does >>>> not happen enabling the Net panel. >>>> >>>> >>>> Regards, >>>> Luca >>>> >>>> >>>> >>>> On 20 August 2013 08:41, Sebastian Zartner <sebastia...@gmail.com>wrote: >>>> >>>>> Tested with the Aurora version from 2013-08-18 and the latest revision >>>>> of the Firebug source (only having Firebug development related extensions >>>>> installed) and it's working fine for me, i.e. there is only a delay of >>>>> ~1s >>>>> when switching to a tab, which has Firebug enabled. >>>>> So please disable the other extensions and let us know if that helps >>>>> in any way. If you have the current stable (23.0.1) of Firefox installed >>>>> besides Aurora, then please also try it out there using the same profile. >>>>> Is there any difference? >>>>> >>>>> Sebastian >>>>> >>>>> >>>>> On Tuesday, August 20, 2013 4:45:46 AM UTC+2, pd wrote: >>>>>> >>>>>> Hello >>>>>> >>>>>> For the last couple of weeks, or perhaps longer, I've been seeing >>>>>> Aurora freeze (Not Responding) when I switch to a tab with Firebug >>>>>> loaded. >>>>>> If Aurora doesn't freeze, it takes approximately 6 seconds to update >>>>>> Firebug with the correct representation for the relevant tab's contents. >>>>>> >>>>>> I just updated to Aurora 25.0a2 (2013-08-19) and I'm using Firebug >>>>>> 1.12.0b6 with it. I do have a bunch of other extensions installed so >>>>>> there's potential for conflict. I'd be willing to disable extensions to >>>>>> test for conflicts but this is my work environment and I need it running >>>>>> optimally ASAP (yes I know that running Aurora might sound contradictory >>>>>> to >>>>>> that goal). >>>>>> >>>>>> Has anyone else experienced similar behaviour over the last 2-4 weeks >>>>>> (maybe more) ? >>>>>> >>>>>> Is there anything I can do to minimize this problem? >>>>>> >>>>>> pd >>>>>> >>>>> -- >>>>> You received this message because you are subscribed to the Google >>>>> Groups "Firebug" group. >>>>> To unsubscribe from this group and stop receiving emails from it, send >>>>> an email to firebug+u...@googlegroups.com. >>>>> To post to this group, send email to fir...@googlegroups.com. >>>>> Visit this group at http://groups.google.com/group/firebug. >>>>> To view this discussion on the web visit >>>>> https://groups.google.com/d/msgid/firebug/955892a2-b4e8-42c9-91fd-ce107ccc9a28%40googlegroups.com >>>>> . >>>>> >>>>> For more options, visit https://groups.google.com/groups/opt_out. >>>>> >>>> >>>> >>> -- You received this message because you are subscribed to the Google Groups "Firebug" group. 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