Issue: avast! 4.6-665 Pro and Mozilla Firefox

Hi,

I’ve been getting a weird problem with avast! and firefox webbrowser. Sometimes when I go to a webpage I get “This document contains no data” error message and the page doesn’t load. I found I could get the webpage to load by terminating the script blocking and/or webshield modules. Of course I’d like to keep these running at all times for maximum protection, so is there any options I should change to fix it?

Thanks

So the problem is reproducible on specific URL’s? Or mere hitting of F5 (Refresh) causes the page to be displayed correctly…?

Well, I get this message quite frequently on all different types of websites. New one today: www.station-drivers.com

If I hit F5 it just refreshes my homepage (google) because the website never actually gets loaded.

Oops sorry bad example that site seems to be down at the moment. But I get different message depending on whether the AV is on or off ???

You are not using Zonealarm by any chance if you are you will need to turn off your privacy settings

that is ZA/Privacy/Cookie Control “Off”/Add Blocking “Off”/Mobile Code Control “Off”

I was having similar problem this sorted it out. This is a ZA problem not Avast AV

That is normal.

For FireFox, if WebShield is active and a site you’re trying to access is unreachable, you get “Document contains no data”. Without WebShield, the message reads “The operation timed out when attempting to contact ”. In any case, this should only be displayed for sites that are really down.

The difference is caused by the fact that Firefox handles proxy connections differently. There’s not much we can do about that…

BTW IE always displays the same error message.

How can I disable this annoyng popup message (“Document contains no data”) without deactivate the webshield? ???

sounds to me like a DNS issue with your ISP DNS servers being slow or overloaded from time to time…

Try TreeWalk DNS, an incredible piece of free software.
http://ntcanuck.com/

Fixed all my problems and made browsing in general much faster.

Just one small note… I don’t think avast’s Script blocker is anyhow connected to your problem… since avast! script blocking works only with IE, Mozilla and Netscape Navigator, not with Firefox. However, your problem deals with WEB shield as Vlk already mentioned in his latest reply.

Cheers !

i have the same problem more often (document contains no data) since last update. ???

it’s looks like a random problem on some pages sometimes… very strange.

i use to happen before, but not so often since last update (5 or 5 times /day !)

Yes but these are dead links right??

no they re not. a few minutes later or after clicking on another link on the page , i come back to the link causing problem and it works…

ex: the link “books” on amazon.fr doesn’t work while the link “dvd” works… then back to de precedent page and “books” works ???

i’m not sure it’s a problem with avast but i just noticed that it happens very often since last update…

we would need more firefox users’ testimony to be able to conclude… :-\

Vlk, in my case I’m sure:(using firefox 1.0.4) this behaviour don’t depends from the webshield settings. Disabled or not, in Normal or High protection level, the music is the same. I can see the messages on the same specific sites I used for test. In IE the same pages are not affected by the popups messages. Verifing the link is easy to see how the blocked addresses are related to some advertising banners or popup. Are not dead links. In conclusion, no webshields defects. Added: the popups don’t specific the name of the applications who’s blocking the links. Maybe Avast! is not responsible.

what is the site you used for tests ?

The most affected of my most visited links is

http://www.ilsoftware.it/default.asp

I have deactivated also the resident protection by Spyware Blaster, Microsoft Antispyware Beta and SpyBot S&D… the same result… my web settings in Firefox are Java DEACTIVATED, Java Scripts ACTIVATED, Referrers ALLOWED, Cookies ALLOWED

works perfectly for me… :-\

try also http://www.hwupgrade.it/

very strange… ???