Você pode querer atualizar o Firefox . Cria um novo perfil e copia dados relevantes do perfil antigo. O perfil antigo é movido para a sua área de trabalho para backup ou exclusão, conforme desejado.
What does the refresh feature do?
All of your Firefox settings and personal information are stored in a profile folder. The refresh feature works by creating a new profile folder for you while saving your important data.
Add-ons which are normally stored inside the Firefox profile folder, such as extensions and themes, will be removed. Add-ons stored in other locations, such as plugins, will not be removed but any modified preferences (such as plugins you have disabled) will be reset.
Firefox will save these items:
- Bookmarks
- Browsing history
- Passwords
- Open windows and tabs
- Cookies
- Web form auto-fill information
- Personal dictionary
These items and settings will be removed:
- Extensions and themes, website permissions, modified preferences, added search engines, download history, DOM storage, security certificate and device settings, download actions, plugin settings, toolbar customizations, user styles and social features will be removed.
Acesse about:support
(não é possível vincular aqui, infelizmente) e selecione "Atualizar o Firefox ..." no canto superior direito.
Infelizmente, os perfis do Firefox ainda são um pouco propensos a corrupção, especialmente quando você usa muito o navegador.