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i'm facing a problem both on firefox(no addons) & chrome (ubuntu 12.04), some sites like facebook, askubuntu, deviantart are not loading even after 10-15minutes of time. but youtube videos or other sites are running quiet well. The problem is webpage specific, if anyone knows how to get rid of the problem please help.

thanks in advance

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closed as too localized by maythux, devav2, RolandiXor, con-f-use, Jorge Castro Oct 9 '12 at 21:39

This question is unlikely to help any future visitors; it is only relevant to a small geographic area, a specific moment in time, or an extraordinarily narrow situation that is not generally applicable to the worldwide audience of the internet. For help making this question more broadly applicable, visit the help center.If this question can be reworded to fit the rules in the help center, please edit the question.

In firefox: try see if the error console says anything specific? (from the menu: Tools > Web Developer > Error Console) – Gertjan Oct 4 '12 at 21:08
up vote 2 down vote accepted

When random sites are working while others are not I always check for MTU issue (or PMTU discovery) first. I'd recommend trying this and see if that helps:

sudo iptables -t mangle -I OUTPUT -p tcp --tcp-flags SYN,RST SYN -j TCPMSS --clamp-mss-to-pmtu

For more information on this:

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Try to remove your browser cache, in Firefox by selecting "Extras" → "Remove newest history". Make sure, that all the ticks are selected. It's possible that your computer loaded the webpages wrongly

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i have tried that.. but not only firefox, newly installed chrome or midori are also affected with the same issue.. – Avik Datta Oct 5 '12 at 13:35

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