Firefox not refreshing/loading unless I keep moving mouse pointer

I have Mozilla Firefox as your browser and would like to know if there was an option to automatically refresh the web page where I am (which would be handy for forums such as: new message, the page will refresh automatically). It is not refreshing/loading unless I keep moving mouse pointer. Everything works very well except that when I re-update my page (F5) my clip disappears, I am obliged to force the update cache (ctrl-f5) to review the clip. Please help.

Check the solution with Firefox:
1. Close all other open browser windows.
2. Click on the menu Tools at the top of your browser and select Options. Click Privacy.
3. Click Clear Cache in the Cache section.
4. Click OK.

# First, if the computer screen become frozen when you are trying to work something CTRL + ALT + DEL or restart your computer.
# Make sure your computer is not in::: or hibernate. You can wake it from hibernation support the power button or move the mouse or press a button if it.

To ensure the power cable to the monitor to operate in case if you're using a desktop. To ensure you have the monitor connected to the computer or another external display device (like a spotlight.) If a laptop is connected to an external device the image to be displayed in either the laptop screen or the external device or any both. Incomplete use the keyboard shortcut fn + f4 Xxx (Function + F4) on many reprises0 exchange between the option.

Problems of this kind are often due to interference between extensions. The first thing to do is run Firefox in Safe Mode (Safe Mode) and see if the problem persists. If not, disable all extensions and then reactivate them one by one to find the culprit. If you use a firewall, disable it, then try to access to netvibes. If you can access, the problem is probably your firewall. To solve the problem, you can optionally add to your list of trusted sites.

Check the cookies is not blocked:
* Click on "Tools."
* Click on "Options".
* Select the tab "Privacy", then click the Exceptions button.
If netvibes is listed in the list, select it, then click "Remove site".
Javascript is enabled?
* Click on "Tools."
* Click on "Options".
* Select the Content tab, then check that the "Enable JavaScript" is checked. If this is not the case, check it.