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

Since I upgraded to Firefox (v.21), adblock plus disapears when I close firefox. I have to download & re-install. How can I install it permanently??

  • 9 replies
  • 13 have this problem
  • 11 views
  • Last reply by FredMcD

more options

It was working fine before, but it's since I upgraded it to Firefox 21 that adblock plus gets erased when i close Firefox. It shows in my add-ons (under extension) when i install it, but disapear when i close firefox and re-open it.

Chosen solution

Thanks fredmcd. I reset firefox, reinstalled adblock plus and it's working fine now.

Read this answer in context 👍 0

All Replies (9)

more options
more options

See the "Corrupt extension files" section of the following article.

more options

That's where I got it from and it installs properly. But as soon as I close firefox and re-open it, it's gone and I have to download and reinstall again

more options
more options

amitshree and Gingerbread_Man,

Thanks for your help.

I followed the instructions and it partially worked. I deleted extension.sqlite (it was the only one there from the three referenced in the instructions), deleted the file preference and i also deleted the folder adblockplus. I don't have to reinstall it anymore after closing firefox, it stays under extension. But it does something weird. Although it is still in the add-ons (extensions), and it shows as enabled, it's not functioning unless i disable it and re-enable it.

more options

Did you also delete the compatibility.ini file to make Firefox rebuild other files in the Firefox profile folder?

Did you try to uninstall and reinstall ABP?

more options

I had the same problem for a while. I start Firefox, but Ad-block was gone from my display. The add-on was there, just not working. This link is what I did to get Ad-block working again;

https://adblockplus.org/forum/viewtopic.php?f=1&t=14092&sid=9d62ebd699e6e79646bacb432bad9be9&p=73455#p73455
more options

Chosen Solution

Thanks fredmcd. I reset firefox, reinstalled adblock plus and it's working fine now.

more options

Glad I could help.