Windows 10 reached EOS (end of support) on October 14, 2025. If you are on Windows 10, see this article.

Pesquisar no site de suporte

Evite golpes de suporte. Nunca pedimos que você ligue ou envie uma mensagem de texto para um número de telefone, ou compartilhe informações pessoais. Denuncie atividades suspeitas usando a opção “Denunciar abuso”.

Saiba mais
Esta discussão foi arquivada. Faça uma nova pergunta se precisa de ajuda.
Solved Arquivado

Add-Ons page recognizing wrong Firefox version

linoleum

I have installed Firefox 65.0 on Debian Stretch following the instructions on this website: https://linuxconfig.org/how-to-install-latest-firefox-browser-on-debian-9-stretch-linux. When I execute "firefox --version" on my terminal I get "Mozilla Firefox 65.0", the same which is shown in "Help -> About Firefox".

However, when I try to install some add-ons I get a warning "You're using Firefox 51.0"- it seems to think that I'm still using the old version. Am I? How can I fix it?

I have installed Firefox 65.0 on Debian Stretch following the instructions on this website: https://linuxconfig.org/how-to-install-latest-firefox-browser-on-debian-9-stretch-linux. When I execute "firefox --version" on my terminal I get "Mozilla Firefox 65.0", the same which is shown in "Help -> About Firefox". However, when I try to install some add-ons I get a warning "You're using Firefox 51.0"- it seems to think that I'm still using the old version. Am I? How can I fix it?
Capturas de tela anexadas

Todas as respostas (2)

Solução escolhida

The User Agent you used to post this thread is Mozilla/5.0 (Windows NT 10.0; WOW64; rv:51.0) Gecko/20100101 Firefox/51.0

So it appears to be either from a UA related Extension you have installed or it was manually modified.

https://support.mozilla.org/en-US/kb/how-reset-default-user-agent-firefox

Alterado por James em

You're right. It was manually modified by an old add-on I had already removed a long time ago. The link you provided solved the issue, thanks.