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.

Avatar for Username

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

Mulongo oyo etiyamaki na archive. Tuna motuna mosusu soki osengeli na lisalisi

keep getting "add-on does not match the add-on firefox expected" message

  • 6 biyano
  • 174 eza na bankokoso oyo
  • 4 views
  • Eyano yasuka ya swbitton

dmioduszewski
dmioduszewski
more options

Since I updated to Firefox 6 I have not been able to add new or replace old add-ons (firebug). When I click any add-on to download from the add-on panel I keep getting a download error message; when I am on the actual add-on page in firefox and click the install button I get a box at the address bar that reads "The add-on from addons.mozilla.org could not be installed because it does not match the add-on Firefox expected"

Since I updated to Firefox 6 I have not been able to add new or replace old add-ons (firebug). When I click any add-on to download from the add-on panel I keep getting a download error message; when I am on the actual add-on page in firefox and click the install button I get a box at the address bar that reads "The add-on from addons.mozilla.org could not be installed because it does not match the add-on Firefox expected"

All Replies (6)

Jorge
Jorge
more options

Some add-ons can produce this error if there is a problem with the calculated hash in the Add-ons site. This can be fixed on the site, but we need to know about it. Please send a message to amo-admins@mozilla.org explaining the problem and the add-on that gives you this problem.

dmioduszewski
dmioduszewski Nkolo motuna
more options

Some add-ons? I just tried to update two existing add-ons (FoxTab and RSS Ticker) and got the message and then tried to get some new add-ons (ColorZilla and Download Statusbar) to no avail.

Jorge
Jorge
more options

If this is happening for all add-ons, then the problem is most likely not on the site. We would have certainly heard from many users if those very popular add-ons had incorrect hashes calculated for them.

It sounds like there's something corrupting your downloads and making the hash comparison fail.

Have you tried downloading the file (right click -> save as) and then dropping it directly in the Add-ons Manager?

cor-el
cor-el
  • Moderator
  • Top 10 Contributor
more options

Make sure that your security software isn't inspecting and repacking the extension file.

foxyfoxy
foxyfoxy
more options

Login as admin and install. Worked for me ;)

edit: Actually, I had to install it as admin and then I was able to install it as a regular user as well.

Ezalaki modifié na foxyfoxy

swbitton
swbitton
more options

I am able to install add-ons directly from the owners websites if they have them but not from Mozilla's add-on page.