Add OLD to the name of the folder so a space after distribution, i.e. distribution OLD or no space, i.e. distributionOLD

Doesn't matter, it just should be anything different so Firefox ignores it.

After that should I reboot the computer to see if that extension is no longer on my browser?

Remove the bookmark again, then do a regular exit/restart of Firefox (no need to restart Windows).

If it worked, the about:policies page should not show those policies, and the bookmark should not come back.

Dear jscher2000,

You have solved the problem. The extension does not appear when I reload Firefox.

How can I possibly thank you? You have relieved so much stress from me since the nethelper problem came up a week ago.

I note from the time you emailed me. It says 2.00 a.m. in the morning! That means you are in the US (I am in Australia)??????

I note you are a top10 contributor. Can I acknowledge you and your magnificent help to the Firefox administrators? If so, please give me an email address where I can contact them.

Lastly, please nominate your charity. If you don't have one, will you approve of the charity I nominate which is seeing eye dogs for the blind in Australia?

I await your return email and again I thank you so much.

Cheers, Anthony

Hi Anthony, you don't need to repay me. You can mark one of my replies as the solution to the problem to close out this question. I hope this episode will make you a little bit more confident in handling the strange things our computers impose on us, and bit by bit you may become the person your peers turn to when they need to solve their mysteries. At the least you will will be able to tell them what website to ask on.

Dear jscher2000

Your response has told me just how fortunate I have been to have my help message read by you. I am sure no-one else would spend the amount of time on a problem that you have so generously done.

I thank you for your comment that I do not need to repay you but I have made a donation to charity as I said I would and have attached the acknowledgement so you can see that I have done what I said I would.

I only wish I were able to make a larger donation as a result of the time you have spent with me.

As I said, I am guessing you are in the US judging by the time of your emails. If you ever come to Australia or if there is anything I can do for you please let me know so I can share some hospitality.

Firefox is so lucky to have you on the panel of Help...especially for old people like me.

Cheers Anthony

Thank you, Anthony. Some day I will get to Australia!