Hey firefoxuse

When you have downloaded an addon it pops up to ask if you trust the addon, if you download a few it might have just assumed you trust it. Go to your addon manager and look at extensions and see if its there

Hope this helped Brad

Bradforth said

Hey firefoxuse When you have downloaded an addon it pops up to ask if you trust the addon, if you download a few it might have just assumed you trust it. Go to your addon manager and look at extensions and see if its there Hope this helped Brad

no, unfortunately it is not in the addon list

hey.. all the addons available doesn't work on firefox on android while they on desktop.

you may refer here so that you can get your problem resolve

https://addons.mozilla.org/en-us/faq

kushagra said

hey.. all the addons available doesn't work on firefox on android while they on desktop. you may refer here so that you can get your problem resolve https://addons.mozilla.org/en-us/faq

who mentioned android here? what does android have to do with this?

http://kb.mozillazine.org/Unable_to_install_themes_or_extensions_-_Firefox

finitarry said

http://kb.mozillazine.org/Unable_to_install_themes_or_extensions_-_Firefox

this refers to ancient firefox versions

as for what still applies, it displays an error message

in my case, there is no error message!

by the way, I run Firefox Portable

what is the diagnostic procedure to find what's wrong?

firefoxuse said

by the way, I run Firefox Portable

You should have said that in the first place.

what is the diagnostic procedure to find what's wrong?

Much the same, but remember one important thing; Firefox Portable is not made by Mozilla.

See if this link can help. If not, contact Firefox Portable support.

http://kb.mozillazine.org/Unable_to_install_themes_or_extensions_-_Firefox#Unexpected_installation_error_-203

FredMcD said

firefoxuse said

by the way, I run Firefox Portable

You should have said that in the first place.

what is the diagnostic procedure to find what's wrong?

Much the same, but remember one important thing; Firefox Portable is not made by Mozilla.

See if this link can help. If not, contact Firefox Portable support.

http://kb.mozillazine.org/Unable_to_install_themes_or_extensions_-_Firefox#Unexpected_installation_error_-203

Fred, are the instructions to perform the 'new-profile check' the same for portable firefox? or they are different? is the way to create a new profile the same?

I do not know. You will have to ask Firefox Portable support.

https://support.mozilla.org/en-US/kb/profile-manager-create-and-remove-firefox-profiles

https://support.mozilla.org/en-US/kb/recovering-important-data-from-an-old-profile

https://support.mozilla.org/en-US/kb/back-and-restore-information-firefox-profiles