Firefox – Disable/enable the proxy on a tab by tab basis in Firefox

browser-tabsfirefoxfirefox-extensionsPROXY

Is it possible to disable/enable the proxy connection on a tab-by-tab basis in Firefox?

I can access the internet with the proxy enabled, and I can access our internal servers with the proxy disabled, but neither configuration allows the other.

I have a feeling that Firefox 4's per tab profiles may permit this, but was wondering whether there was a way to achieve this on Firefox 3.6.13, perhaps through the use of an extension.

For the moment I'm making do with quickProxy (not QuickProxy which I've just discovered while trying to find quickProxy) which allows me to switch the proxy on and off for the whole browser, but would prefer something more fine-grained.

Best Answer

I recently discover this FireFox extension that might work for you:

https://addons.mozilla.org/en-US/firefox/addon/container-proxy/

this seems to allow you to configure a proxy per-container and you can certainly attach one or more tabs to the container as needed.

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Firefox – Close tab that has a JavaScript pop-up dialog

What version of FF?

 in firefox 4, javascript alerts/prompts.... no longer block the entire
 application (finally), only the tab, so you can close the tab without
 dismissing the prompt

http://forums.informaction.com/viewtopic.php?f=7&t=6473

Linux – How to one change a Firefox config setting from the CLI

I can't find any way to reload the prefs.js file (that's where firefox stores its settings) after changing it from the command line. That's a shame 'cause that would have been the simplest way of doing it.

However, for the specific setting you want to change, you could simply set up a proxy.pac file which checks if your IP is in a particular subnet and only sets up a proxy if it is:

if (isInNet(myIpAddress(), "192.168.1.0", "255.252.0.0")) { 
     proxy = "PROXY 123.456.789.100:12345";
}
else{
     proxy = "DIRECT";
}
return proxy;

Obviously, you should use your actual proxy's URL and port. You'll also need to modify it so it runs the correct tests (IP range etc) for your setup.

Now, open the proxy setting tab, select the "Automatic proxy configuration URL" and point it to: file:////path/to/proxy.pac. Restart firefox and you should now have your proxy set automatically depending on your IP address.

See here for more details.

Best Answer

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Firefox – Close tab that has a JavaScript pop-up dialog

Linux – How to one change a Firefox config setting from the CLI

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