Recent answers to Firefox 12 is very slow to load pages and if two tabs are opening it lags.https://support.mozilla.org/en-US/questions/9266212012-05-21T08:17:02-07:00ilblackhawk & anyone else with problems similar to those of the thread title
Please read the inf2012-05-21T08:17:02-07:00John99https://support.mozilla.org/en-US/questions/926621?page=4#answer-335287<p><u>ilblackhawk &amp; anyone else with problems similar to those of the thread title</u>
<br>Please read the information in this thread and in particular my last two posts just above.
</p><p>Please start your own thread by asking your own question and providing full details. (The thread is otherwise locked.)
</p><p>To start a new thread, use this link:
<br> <a href="https://support.mozilla.org/en-US/questions/new" rel="nofollow">https://support.mozilla.org/en-US/questions/new</a>
</p><p>By all means post back in this thread to cross reference any question you ask. Currently over 500 people have registered an interest with similar problems. Lets see if we can get full details of some of those and get them solved.
</p><p>Please also allow submission of telemetry data, as I suggested in the post above, that helps developers get an accurate picture of how well or otherwise Firefox is performing.
</p>
<hr>
<p><strong>Edit:</strong> <u>Notice from moderator</u>
<br> This thread is being locked due to its large size which is making it hard &amp; confusing to give support to specific individual users. So to avoid a unorganized situation like this, it helps us give you one-on-one support if you post in a thread of your own.
</p><p>To start a new thread, use this link:
<br> <a href="https://support.mozilla.org/en-US/questions/new" rel="nofollow">https://support.mozilla.org/en-US/questions/new</a>
</p>
<hr>
<p>P.S.<br>
If you do have a problem with Firefox being very slow to load pages and lagging, once you have started a new thread, if you have a strong desire for it to be mentioned in this thread please send me a Private Message.
</p><p>(<u><strong>The thread is</strong> otherwise <strong>locked,</strong></u> but I will add cross references if necessary. This is a thread currently still attracting a lot of me too votes) <br>John99
</p>I agree and am getting closer and closer to finding a new browser to use.
New versions should ALWAYS2012-05-21T06:40:21-07:00ilblackhawkhttps://support.mozilla.org/en-US/questions/926621?page=4#answer-335264<p>I agree and am getting closer and closer to finding a new browser to use.
</p><p>New versions should ALWAYS be BETTER not WORSE!
</p>CanonFodder, If you wish to try looking further at your problem & hopefully discover a solution 2012-05-21T06:37:12-07:00John99https://support.mozilla.org/en-US/questions/926621?page=4#answer-335262<p>CanonFodder, <br>If you wish to try looking further at your problem &amp; hopefully discover a solution I suggest you start a new thread, (and post back in this thread if you do so; readers of this thread may be interested in the outcome.)
</p><p>To start a new thread, use this link:
<br> <a href="https://support.mozilla.org/en-US/questions/new" rel="nofollow">https://support.mozilla.org/en-US/questions/new</a>
</p>Well, admittedly the problems aren't quite as bad with one or two tabs open but it is still noticeab2012-05-21T01:51:50-07:00CanonFodderhttps://support.mozilla.org/en-US/questions/926621?page=4#answer-335211<p>Well, admittedly the problems aren't quite as bad with one or two tabs open but it is still noticeable.
</p><p>I have just installed Google Chrome and there is no apparent issue with one or several tabs open.
</p><p>I will enable the telemetry in Firefox and continue to use it and have a read of those links you posted.
</p><p>Thanks.
</p>Cannon Fodder,
Sorry you are having problems. I am sure Firefox should not have those sorts of delay2012-05-20T23:24:33-07:00John99https://support.mozilla.org/en-US/questions/926621?page=4#answer-335181<p>Cannon Fodder,
</p><p>Sorry you are having problems. I am sure Firefox should not have those sorts of delays and problems on a modern quad core machine. In fact I would go as far as to say it is completely unacceptable with a single tab open. (The Original Poster seems to have an older system and that may be a contributory factor.)
</p><p>I suggest after reading suggestions in this thread you start a new thread and give full details of what you have tried and your problem.
</p><p>Even with Firefox using 1GB maybe there should not be noticeable problems on a 4GB machine. Possibly part of your problem will turn out to be third party software interactions or background tasks.
</p><p>Have you enabled the submission of telemetry results, that allows firefox developers to see (anonymised) details of real users having problems, it reports things like startup times and hangs. The system was brought out after Firefox developers missed some big problems and realised some method was needed to get data on problems that slow firefox without it crashing.
</p>
<ul><li> see <a href="/en-US/kb/share-data-mozilla-help-improve-firefox" rel="nofollow">Share data with Mozilla to help improve Firefox</a>
</li></ul>
<p>It is sometimes not easy to determine if a problem is affecting a large proportion of Firefox users or not, and often problems may have more than one cause and not necessarily actually be due to a Firefox fault. On the other hand we do no want to miss investigating and fixing genuine problems.
</p>
<ul><li> as background info you may be interested in
<ul><li> <a href="https://wiki.mozilla.org/Performance/Snappy" rel="nofollow">https://wiki.mozilla.org/Performance/Snappy</a>
</li><li> <a href="http://blog.mozilla.org/tglek/category/snappy/" rel="nofollow">http://blog.mozilla.org/tglek/category/snappy/</a>
</li></ul>
</li></ul>I am having similar issues with v12. Switching between tabs, typing, screen scrolling, opening a new2012-05-20T20:36:27-07:00CanonFodderhttps://support.mozilla.org/en-US/questions/926621?page=4#answer-335151<p>I am having similar issues with v12. Switching between tabs, typing, screen scrolling, opening a new tab, saving bookmarks, minimizing, etc are all done after a brief pause of about half a second and occur every 1-2 seconds, especially noticeable when typing and getting quite annoying.
</p><p>I'm using Windows 7 Professional, Core i5 quad, 4GB RAM.
</p><p>Currently I have 15 tabs open and FF is using over 1GB of RAM but even when only one tab is open I am noticing these delays.
</p><p>I have tried almost all of the solutions offered in this thread with no discernible change in performance. I have been a faithful Mozilla fan for years but am considering a change to something else if the quality of Firefox continues to degrade with each successive release.
</p>Seemingly I've vista 64 bit system and sony don't do drivers for that so plenty of work ahead, thank2012-05-20T08:18:47-07:00Seasick12https://support.mozilla.org/en-US/questions/926621?page=4#answer-335080<p>Seemingly I've vista 64 bit system and sony don't do drivers for that so plenty of work ahead, thanks again for your help
</p>for the fn-keys i'd consult the support section of your manufacturer's website and search for a driv2012-05-20T07:52:24-07:00philipphttps://support.mozilla.org/en-US/questions/926621?page=3#answer-335074<p>for the fn-keys i'd consult the support section of your manufacturer's website and search for a driver package for the hotkeys of your notebook model...&nbsp;;-)
</p><p>but glad you found a way to improve performance!
</p>I've no idea whats happened but I've done a system back up thingy to about a month ago and it seems 2012-05-20T07:34:54-07:00Seasick12https://support.mozilla.org/en-US/questions/926621?page=3#answer-335068<p>I've no idea whats happened but I've done a system back up thingy to about a month ago and it seems to be better, I can now open five tabs at one time to games sites in approx 10 seconds which is great. maybe I've done too much fiddling with the system. I think I'll be content with it now and stop bothering you madperson&nbsp;;-) Next job now is to find out why half my FN keys don't work. Cheers for all your help.
</p>probably not. i'm running out of ideas slowly... would you say the whole browser is becoming unrespo2012-05-20T06:31:20-07:00philipphttps://support.mozilla.org/en-US/questions/926621?page=3#answer-335051<p>probably not. i'm running out of ideas slowly... would you say the whole browser is becoming unresponsive (for example opening menus &amp; switching tabs lags) when the slow page loading is occurring or is it only the content of that one tab that is hanging?
</p>Still slow :-( I've noticed I have two versions of mircosoft.NET framework NGEN v4.0.30319 one2012-05-20T03:03:18-07:00Seasick12https://support.mozilla.org/en-US/questions/926621?page=3#answer-335013<p>Still slow&nbsp;:-( I've noticed I have two versions of <a href="http://mircosoft.NET" rel="nofollow">mircosoft.NET</a> framework NGEN v4.0.30319 one X64 and the other X86 running in services. Anything to do with this????????
</p>Cheers, I'll let you know how it goes.
2012-05-20T00:22:07-07:00Seasick12https://support.mozilla.org/en-US/questions/926621?page=3#answer-334992<p>Cheers, I'll let you know how it goes.
</p>you have to add the program-path for firefox.exe & plugin-container.exe to the "Processes to exc2012-05-20T00:09:40-07:00philipphttps://support.mozilla.org/en-US/questions/926621?page=3#answer-334989<p>you have to add the program-path for firefox.exe &amp; plugin-container.exe to the "Processes to exclude" section. those are most likely:
</p><p>C:\Program Files (x86)\Mozilla Firefox\firefox.exe
</p><p>C:\Program Files (x86)\Mozilla Firefox\plugin-container.exe
</p>Cheers madperson,The only plugin I have is shockwave flash because I cannot see the news vids etc wi2012-05-19T23:56:20-07:00Seasick12https://support.mozilla.org/en-US/questions/926621?page=3#answer-334986<p>Cheers madperson,The only plugin I have is shockwave flash because I cannot see the news vids etc without that. I ran FFi n safe mode and it really didn't make a difference. I un instsalled fixit utilities which was on the laptop when I got it (I presume thats what you saw) and I've installed flashblock so I'll see how it goes. To add firefox/the plugin-container onto avast's exclusion list do I just enter www.firefox etc or what?? Thanks again fo all your help.
</p>ok, from the information you've provided memory doesn't seem to be the problem (therefore likely a d2012-05-19T23:17:23-07:00philipphttps://support.mozilla.org/en-US/questions/926621?page=3#answer-334981<p>ok, from the information you've provided memory doesn't seem to be the problem (therefore likely a different issue than raffieltiger has) - at those low rates it is in the normal range, that the plugin container is using as much RAM on a site with heavy flash usage.
</p><p>the cpu-usage seems rather high, but i don't know if this would cause the problem that you've described (as long as it does not stay on 100% for a while). you can try disabling plugins that you don't need (probably the real-player stuff &amp; vlc) in addons &gt; plugins and use an addon like <a href="https://addons.mozilla.org/firefox/addon/flashblock/" rel="nofollow">flashblock</a> to only enable flash on demand (a <a href="https://wiki.mozilla.org/Opt-in_activation_for_plugins" rel="nofollow">similar built-in solution for firefox</a> is in the works).
</p><p>when the loading indicator spins counter-clockwise, firefox is waiting for the connection to be established, this may rather depend on external factors (firewalls blocking firefox or sandboxing components of it, network settings). i'd have another look at avast - there are other forum entries that suggest the webshield function might slow down firefox, you might want to disable it temporarily an in case this helps add firefox/the plugin-container onto its exclusion list. there's also a task on your list that indicates you're using some sort of system tuning software - those often do more harm than good. i'm not familiar with the one shown, but in case it offers some sort of network speed optimization or speed-boost for programs you can try resetting those to the system's default.
</p><p>another thing to try is launching firefox in <a href="/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode" rel="nofollow">safe mode</a> and see if the slow-downs do occur there too (likely redundant when you already have created a new profile).
</p>I couldn't edit and add the pic to the above post. sorry,I got it finally.
2012-05-19T20:30:25-07:00Seasick12https://support.mozilla.org/en-US/questions/926621?page=3#answer-334940<p>I couldn't edit and add the pic to the above post. sorry,I got it finally.
</p>The task manager does spike (see image) and the indicator only blinks while the page iis loading. As2012-05-19T20:21:41-07:00Seasick12https://support.mozilla.org/en-US/questions/926621?page=3#answer-334938<p>The task manager does spike (see image) and the indicator only blinks while the page iis loading. As for your last question on memory is the second pic any use??
</p>when you're looking in the windows task manager while firefox is (slowly) loading a page, is there a2012-05-19T20:00:19-07:00philipphttps://support.mozilla.org/en-US/questions/926621?page=3#answer-334934<p>when you're looking in the windows task manager while firefox is (slowly) loading a page, is there a substantial spike in cpu usage (i.e. 100% for a few seconds) or is the harddrive activity indicator on your pc constantly blinking? and how much memory do firefox &amp; the plugin container occupy/ how much have installed in total?
</p>Thanks again for your help madperson but there's no change, maybe I'll just accept my computer and m2012-05-19T19:36:05-07:00Seasick12https://support.mozilla.org/en-US/questions/926621?page=3#answer-334927<p>Thanks again for your help madperson but there's no change, maybe I'll just accept my computer and me are getting older and slower&nbsp;:-)
</p>@mothernature - the issue of firefox loading pages slowly can have various reasons. in case you want2012-05-18T23:59:35-07:00philipphttps://support.mozilla.org/en-US/questions/926621?page=3#answer-334770<p>@mothernature - the issue of firefox loading pages slowly can have various reasons. in case you want us to help troubleshoot the issue and have a closer look into your individual case, please open a new question in the forum where you also can provide more details about your system.
in case you don't want to troubleshoot and just give feedback to the developers use <a href="https://input.mozilla.org/feedback" rel="nofollow">https://input.mozilla.org/feedback</a>. otherwise this thread will become increasingly scattered, it's hard to keep track &amp; give tailored solutions/troubleshooting recommendations. thank you!
</p><p>@raffieltiger - does the problem also occur when you run firefox in <a href="/en-US/kb/diagnose-firefox-issues-using-troubleshoot-mode" rel="nofollow">safe mode</a>? some programs (like mcafee) hook in global extensions into firefox that will also be present in a new firefox profile &amp; leak quite a substantial amount of memory. it would probably be better to open a new question too, where you shortly recap the things you've already observed and tried &amp; can provide more detailed troubleshooting information from about:support.
</p>