Hi Callum, I understand that Firefox changes the url when you type in the url bar. This can be changed in the Settings. This can be changed in the Settings.
Open up the Firefox Menu button. Click on Options/Preferences. Click on Privacy and under Location Bar uncheck what you do not want to auto complete.
URL bar is correcting TLDs on urls such as example.ocm ( -> example.com ), example.ent ( -> example.net ). Also cannot find the config option to disable this.
You probably already know the drill, but just in case:
Type in the address bar about:config and press Enter.
(ignore the warning)
Type in the search bar browser.fixup
You may want to change the value of browser.fixup.alternative.enabled to false
(or any of the others).
After you've changed a value, close and restart Firefox.
Any difference ?