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How do I make firefox use http instead of https?

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In my company's internet it is problematic to use https. However firefox always defaults to https connections (e.g. when making a google search from the search toolbar, or when typing an address bar starting with "www"); therefore always bringing up an "This Connection is Untrusted" alert page and making me have to manually go to the address bar and changing the "https" to "http". In Google Chrome and Internet Explorer it is very easy to set the browser to use http instead of https. However, I can't seem to find this option in firefox. Any ideas?

In my company's internet it is problematic to use https. However firefox always defaults to https connections (e.g. when making a google search from the search toolbar, or when typing an address bar starting with "www"); therefore always bringing up an "This Connection is Untrusted" alert page and making me have to manually go to the address bar and changing the "https" to "http". In Google Chrome and Internet Explorer it is very easy to set the browser to use http instead of https. However, I can't seem to find this option in firefox. Any ideas?

Chosen solution

There are two different settings involved:

Address Bar Autofill

If you have used HTTPS on a site before, Firefox's address bar autofill feature will prefer the HTTPS address. If you don't mind selecting from the drop-down instead, or simply typing the whole address, you can turn off the address bar autofill. Here's how:

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the filter box, type or paste autofill and pause while the list is filtered

(3) Double-click browser.urlbar.autoFill to toggle it from true to false.

Address Bar Search

Regarding address bar search, you can change the URL used by the "keyword" service. Please see this thread for links: Unable to connect to proxy due to automatic https.

Does that solve it?

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Chosen Solution

There are two different settings involved:

Address Bar Autofill

If you have used HTTPS on a site before, Firefox's address bar autofill feature will prefer the HTTPS address. If you don't mind selecting from the drop-down instead, or simply typing the whole address, you can turn off the address bar autofill. Here's how:

(1) In a new tab, type or paste about:config in the address bar and press Enter. Click the button promising to be careful.

(2) In the filter box, type or paste autofill and pause while the list is filtered

(3) Double-click browser.urlbar.autoFill to toggle it from true to false.

Address Bar Search

Regarding address bar search, you can change the URL used by the "keyword" service. Please see this thread for links: Unable to connect to proxy due to automatic https.

Does that solve it?