Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

How to stop Firefox disabling Web of Trust add on

more options

Firefox has suddenly take a dislike to the Web of Trust add on which I have on my computer. Everytime I use the computer Firefox tells me that the add on could not be verifed and it has either disabled it, or as I found after downloading WoT again, it tells me that it will be disabled when I restart Firefox.

There is no way of overriding this and it is very annoying as I like WoT and have used it for years. Any help please?

Many thanks, Rosie Davis

Firefox has suddenly take a dislike to the Web of Trust add on which I have on my computer. Everytime I use the computer Firefox tells me that the add on could not be verifed and it has either disabled it, or as I found after downloading WoT again, it tells me that it will be disabled when I restart Firefox. There is no way of overriding this and it is very annoying as I like WoT and have used it for years. Any help please? Many thanks, Rosie Davis

Chosen solution

Enter about:config into your Firefox address bar Click the I'll be careful button Find xpinstall.signatures.required in the list Right click the preference Select Toggle until the value is false

Read this answer in context 👍 3

All Replies (2)

more options

Chosen Solution

Enter about:config into your Firefox address bar Click the I'll be careful button Find xpinstall.signatures.required in the list Right click the preference Select Toggle until the value is false

more options

Wow! Thanks for the fast reply! I've done that so I'll see what happens with it. many thanks, Rosie