There are some prefs about selecting text in the location bar that you can look at:

• browser.urlbar.clickSelectsAll
• browser.urlbar.doubleClickSelectsAll

You can open the about:config page via the location/address bar. You can accept the warning and click "I'll be careful" to continue.

• http://kb.mozillazine.org/about:config

Thanks Cor-el. Unfortunately this hasn't worked, strangely. One click in the URL bar still selects all text. When I had this problem years ago I seem to remember a different command in the about:config setup, but I could be wrong. Thanks again.

[EDIT]: Sorry I didn't realise you also had to double click the Oneclick option to get a false value, so it works now, you may stand down Sir.

Hi kryten,

Would you be a dear and mark cor-el's post as   'Chosen Solution'   ? That way others, with the same problem, will know and might benefit from it.

Thank you in advance   !

Consider it done dear lady!