Javascript not working on any browser

[jodyodea]

Hello, certain javascript actions are not working on any browser (firefox 15.0.1 IE9, latest Chrome). www.xe.com and fantasy.premierleague.com are two sites which do not work properly for me.

- Both sites worked in the recent past. One stopped working, then some days after, the other did too. Now both sites (eventually) load as simple hmtl but do not function.
- On screen notification from fantasy.premierleague.com asks me to 'enable javascript to continue using site'
- Javascript is ticked as 'Enabled' on all browsers.
- This problem only present on my Windows 7 laptop and not on either of the other 2 machines which share my home modem
- the problem is present on any internet connection my machine uses (i.e. work wifi, local cafe's wifi)
- the problem persists with antivirus turned off (AVG)
- I've performed a full Firefox reset as per mozilla instructions
- The problem persists when I disable Firefox add-ons (the only add-on I have is ad-blocker) - but again, the problem persists across all browsers
- I'm not using any internet funny business (such as IP blockers or proxy servers)

 

[Saga Lout]

Hello and welcome to Tom's Hardware Forums.

I could understand Firefox playing up if you have the No-Script add-on. You can add sites to the whitelist but they still usually refuse to work so it's better to remove the add-on. If it helps, both sites are behaving normally as I write this.

 

[jodyodea]

This problem is also evident when I attempt to browse any wordpress.com blog. Please help me!

 

[Saga Lout]

Have a look in Firefox to see what add-ons you have running. Turn them off for the time being and stick with the one browser for a few days.

In Control Panel>Internet Options, set Security and Privacy back to default levels. Any settings in there will affect all browsers so it's possible something there is causiing this.

 

[Emmakille]

These problems are related to your browser.

 

[jodyodea]

How could it be related to the browser if it affects all 3 browsers (chrome, IE9, Firefox) on my machine? What should I check?

 

[jodyodea]

Update: I installed a proxy / VPN thing (Expat Shield) and the problem is gone - but only when the VPN is running. What could be causing this...?