What is the problem? What are you using as your homepage? What is showing up? Are there any other problems?

Bookmark and use this; Download the Mozilla Search Reset {web link} This add-on is very simple: on installation, it backs up and then resets your search preferences and home page to their default values, and then uninstalls itself. This affects the search bar, URL bar searches, and the home page.

https://support.mozilla.org/en-US/kb/how-to-set-the-home-page

That did not work I tried it and my home page was as it was

That does not work i tried it and still Bing comes up as my HOME PAGE

When you have a problem, you should describe it in detail.

Type about:addons<enter> in the address bar to open your Add-ons Manager. Hot key; <Control>(Mac=<Command>)<Shift> A)

In the Add-ons Manager, on the left, select Extensions. Remove Bing Anything. Now do the same in the computers Programs Folder.

Windows: Start > Control Panel > Uninstall Programs. Mac: Open the "Applications" folder. Linux: Check your user manual.

If there is still a problem,

You may have ad / mal-ware. Further information can be found in the Troubleshoot Firefox issues caused by malware article.

Run most or all of the listed malware scanners. Each works differently. If one program misses something, another may pick it up.

I don't have bing in my extensions add on i Have tried everything as recommended and STILL i get BING as my HOME page

FredMcD said

What is the problem? What are you using as your homepage? What is showing up? Are there any other problems? Bookmark and use this; Download the Mozilla Search Reset {web link} This add-on is very simple: on installation, it backs up and then resets your search preferences and home page to their default values, and then uninstalls itself. This affects the search bar, URL bar searches, and the home page.

I installed the Mozilla Search Reset it uninstalled all my add ons i then closed Firefox and up popped up Bing as my Home Page with all my add ons enabled !

https://support.mozilla.org/en-US/kb/how-to-fix-preferences-wont-save

Note: Some software, like Advanced SystemCare with Surfing Protection, can protect files in the Firefox profile folder against changes. If you have such software then check the settings or uninstall this software.

I have resolved this at last my Iobit Malaware software was causing the problem so when i uninstalled it i could set my home page thanks

That was very good work. Well Done.