Facebook page does not display properly in TFF FPR9

c ritter's Avatar

c ritter

05 Sep, 2018 09:52 PM

Hi, I just started having this problem with FPR9 on my 1.67GHz PowerPC G4 laptop. When I log into FB, the page loads, but if I scroll down to check the feed, the page display goes blank when I reach the bottom of the first page, even when I wait to make sure the "loading" circle symbol has stopped. Anyone else noticed this, or is my computer having a hiccup? Thanks for the browser, hope to keep using it!

  1. 1 Posted by c ritter on 06 Sep, 2018 05:39 AM

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    OK, so booted up TFF FP9 in safe mode and problem went away. Anyone can tell me where to find the "add-ons" that might be malfunctioning? I'm no computer guy but can follow instructions OK sometimes.

  2. Support Staff 2 Posted by Chris (chtrusch... on 06 Sep, 2018 02:47 PM

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    The easiest way is to start with all extensions disabled, then enable them one by one and check if FB is still working as it should.

  3. 3 Posted by c ritter on 06 Sep, 2018 11:43 PM

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    Thanks for the reply! So, how would I go about doing that? As I said, not a computer person, but I successfully fixed an FB "Like" button problem without screwing the pooch, and can follow instructions well enough.

  4. Support Staff 4 Posted by Chris (chtrusch... on 08 Sep, 2018 05:00 PM

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    In the Menu bar, click Tool > Add-ons, and simply click Disable on all add-ons that are currently enabled. Re-start the browser just to make sure.

    Then log-in to Facebook and see if it's working. If it is, enable one of the add-ons, re-start and try Facebook again. Then enable the next add-on etc. until Facebook breaks.

  5. 5 Posted by Brian J. Patter... on 09 Sep, 2018 06:22 PM

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    I have zero add-ons installed, and I'm having the same problem.

  6. 6 Posted by Brian J. Patter... on 09 Sep, 2018 06:28 PM

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    For my last comment, FPR 9, OS X v10.5.8, Dual 2.5ghz PPC G5, 3.5gb system memory, ATI Radeon 9600XT, 128mb VRAM, ROM revision 113-A13602-121.

  7. 7 Posted by c ritter on 09 Sep, 2018 06:45 PM

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    I only have one add-on/extension, and disabling that (QT add-on) does not solve the problem. So I notice that when I boot up TFF in "Safe" mode, it also deactivates the "Default" theme. I think that's where the problem is. Maybe the solution is just to re-download TFF. Or should I just get another copy of the Default theme from Mozilla? Or try a new theme from somebody else....

  8. Support Staff 8 Posted by Chris (chtrusch... on 09 Sep, 2018 07:10 PM

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    I cannot reproduce this issue at all, neither in my Timeline nor in the Newsfeed.

    Brian, please try first if it works for you in Safe Mode as well, then we can go from there and determine if it's the same problem or a different one.

    c ritter: Please try refreshing your user profile. Go to Help>Troubleshooting Information>Refresh TenFourFox. There must be something else gone wrong in your profile; the theme should not be able to interfere with page loading.

  9. 9 Posted by Brian J. Patter... on 09 Sep, 2018 07:56 PM

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    Hello Chris.

    I refreshed my user profile and restarted, with only one instance (Facebook) running. The problem reduced in severity but was still there. I restarted in Safe Mode, the problem appeared to go away. Restarting normally, with only Facebook running, the problem returned. Facebook (in timeline view) will EVENTUALLY refresh the screen, however this is measured in minutes. The only "add-on" that shows up is the "default theme," which as the name implies is added by default. This add-on can not be disabled without starting in safe mode.

  10. Support Staff 10 Posted by Chris (chtrusch... on 09 Sep, 2018 09:06 PM

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    Okay, so Facebook changed its design a bit (again), and now it started for me, too. (FB doesn't roll out changes to all users at the same time)

    The content in the center column is actually loaded, but for reasons unclear to me it stops being rendered if you scroll down far enough. You can see this if you change the width of the browser window a little: The column is briefly displayed, then vanishes again. Or, as Brian mentioned, if you wait long enough. This occurs in TFF FPR8 as well, has nothing to do with FPR9 per se.

    Even though this seems to be a graphics problem, the (temporary) solution that works for me is to disable Ion*, which is probably also disabled in Safe Mode. This isn't a good solution, though. It doesn't make much of a difference on FB speed-wise, but it will make other websites a lot slower.

    *in about:config set javascript.options.ion to false

  11. Support Staff 11 Posted by Cameron Kaiser on 09 Sep, 2018 11:08 PM

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    I can reproduce this on a test system, but it refreshes within seconds, not minutes (about 5 to 10, on average, 20 on the outside). This is a G5, 10.4.11. This suggests either network or some sort of internal pre-rendering slowdown. It could be an edge case with Ion but debugging Facebook's JavaScript has been nearly impossible in the past, so there may be no quick solution. I always recommend using Facebook Basic if you can stand it.

    Are all the affected systems Leopard?

  12. Support Staff 12 Posted by Cameron Kaiser on 09 Sep, 2018 11:12 PM

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    Also, it seems like the longer the scroll column, the longer the render time.

  13. Support Staff 13 Posted by Chris (chtrusch... on 10 Sep, 2018 08:50 PM

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    I've been using FB in a Foxbox for a while and now have Ion disabled only in that Foxbox, not in the main browser.

    My main system (1.67GHz PowerBook G4) is Leopard, but I was able to reproduce this on the 10.4 G3 Pismo as well. Interestingly the column vanishes here, too, but gets displayed again after a few seconds as you described, Cameron, even on that slow 400 MHz G3 machine. On 10.5 it's definitely more severe because it takes minutes to re-appear, or a resize of the browser window, and then it vanishes again very quickly (i.e., FB is unusable on 10.5).

  14. Support Staff 14 Posted by Cameron Kaiser on 11 Sep, 2018 02:38 AM

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    I just tried testing this in a debug build to see if I could intercept anything, and oddly the bug does not seem to occur there on my G5. Can you try the debug build for FPR9b3 and see if it functions normally (just slower)? It will throw a whole bunch of ASSERTION: frame still referencing style context which you can ignore for this purpose.

    EDIT: NVM, I must have been connected to a different server. The bug manifests in a debug build as well.

  15. 15 Posted by c ritter on 12 Sep, 2018 04:43 AM

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    I remember there being a whole can of worms when FB rolled out their new emoticons as well. I am OK using "safe" mode on FB for now, it keeps me from being on it too much. I also would like to thank the TFFox team for keeping my G4 on line for as long as you have! Can't be easy, but it is much appreciated.

  16. Support Staff 16 Posted by Chris (chtrusch... on 14 Sep, 2018 06:53 PM

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    I was able to trigger the issue reliably with the debug build. Tested on the G4 PowerBook running 10.5; all other Macs I have here are hopelessly underpowered for this purpose, so can't compare to 10.4 right now.

    Can't correlate any console output to the events. While scrolling it doesn't throw anything, actually, except

    2018/09/14 20:42:55 [0x0-0x2c0cc0a].com.floodgap.tenfourfoxdebug [6104] WARNING: NYI: align-self:left/right/self-start/self-end/last-baseline: file /Volumes/BruceDeuce/src/tenfourfox/layout/generic/nsFlexContainerFrame.cpp, line 3018

    which appears regularly about once a minute anyway.

  17. Support Staff 17 Posted by Cameron Kaiser on 14 Sep, 2018 11:04 PM

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    Yeah, that's related to layout, and even appears in more current builds, so I don't think that's involved.

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