Firefox is slow and scripts on web site is crashing

firefox is slow and javascripts on the most web sites is crashing. for example if I open facebook ? I see messages which script https://fbstatic-a.akamaihd.net/rsrc.php/v2/y5/r/QNxOsuxyVYx.js:27 doesn't answer, or in support.cdn.mozilla script https://support.cdn.mozilla.net/media/js/wiki-min.js?build=be7f51e:1 doesn't. This problems I see regulary in many web sites.
I fully reinstall my firefox, but it isn't help me
This problems I see only one my pc which I use Firefox.

Hello alexen, don't be sorry, please '''mark YOUR reply as chosen solution''' to help others with same problem.
thank you

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Hello FredMcD,
thank you for your message.
But your answer to my question at support.mozilla.org is not helpful,
although it is a professional technical answer from a Top 10 Contributor
from mozilla.
It seems that there is a permanent unfixed problem always if a new
version of mozilla is released. After all fixed problems of the earlier
version of firefox, there is no problem at all.
But if I am already working with the non-problem earlier version of
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script errors are appearing, and if I have looked for the actual version
of firefox, there was signed a new version and now I have known,
aha a new vesion of firefox was released and it needs up some time
for every new version until the error problems were fixed.
Maybe it is combined with the plugins like flashplayer or shockwave.
But a professional version of firefox should not sign up error messages,
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wondering for how long version 30.0 was actual in practical working.
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of error messages, slowness and script errors were appearing.
At the moment it seems firefox 31.0 works alright.
But only the following time shows if it works without error messages,
slowness and sript problems or not.
In hope to give a helpful answer to yours
kind regards
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Message was edited by: WZZZ

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Sorry, I asked it in 'Newbie Corner' , but still no resolved. so I asked here.
Hi all,
when i open a website just as www.sohu.com, my firefox (3.0.3) hang on, then display the web page very slow , and slow scroll , firefox cpu usage nearly about 100.
I tried some sloution,like modify /etc/enviroment to set MOD_DISABLE_PANGO=1,
or disable 'tell me if a web site ...' in firefox security option.
but still slow.
some people says it's must because flash or some js.
but when i try it in windows or ubuntu, it very fast, not like in archlinux.
so i think some thing wrong in archlinux. I need your helps.
thank you.
p.s.
1. pacman is very fast (the speed of wget about 400k/s)
2. gnome web browser like firefox , slow and high cpu.
3. the list of output of 'locale' about 11 lines.
4. i have already set host name like wiki says.
5. the system is a new system

http://wiki.archlinux.org/index.php/For … Bumping.27 ??

Firefox is slow and scripts on web site is crashing

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