I should mention I downloaded an application called "savevid" to download youtube videos the other day, and I believe this is when the problem began. I uninstalled the program and I still cannot change my homepage.
Please do the following.
The URL to add in "keyword.URL" becomes a link in this post, so right click it and choose "Copy Link Location" to copy it to the Windows clipboard. Then hit CTRL+V to paste it. Saves you having to type the whole thing.
To reset your home page, do the following.
I thought I had cracked it. Changed keyword url and homepage to the one I wanted, namely uk.msn. It all worked fine, unfortunately after switching off and then restarting I was back to to the wrong start page. Both keyword url and homepage had changed. Ant other suggestion would be much appreciated.
Start Firefox in Troubleshoot Firefox issues using Safe Mode to check if one of the extensions is causing the problem (switch to the DEFAULT theme: Firefox (Tools) > Add-ons > Appearance/Themes).
Install this add-on to prevent hijacking: https://addons.mozilla.org/en-US/firefox/addon/bro
Thanks for all the advice. Unfortunately the problem still remained. The web site is 'searchqu.com'. However, I have effectively solved the problem. I went to 'Tools', 'options', 'content', 'load images automatically' and under 'exceptions' blocked it. This seemed to have worked .
It seems to be an Israeli search engine: http://whois.domaintools.com/18.104.22.168
I'd recommend you install this add-on to prevent another search engine from deleting or modifying your preferences: https://addons.mozilla.org/en-US/firefox/addon/bro