If the Tools > Add-ons (Herramientas > Complementos) page shows "Loading" with the "Get Add-ons" tab selected then you can open one of the other tabs. It is possible that the Add-ons server is busy and it may take time to load the Get Add-ons page.

For the Google toolbar see:

• http://www.google.com/support/toolbar/bin/answer.py?answer=1342452&topic=15356

• FoxLingo: https://addons.mozilla.org/firefox/addon/foxlingo-translator-dictionary/
• ImTranslator: https://addons.mozilla.org/firefox/addon/imtranslator/

Thanks for your response. The problem is that "herramientas/complementos" directs to a web page to load any complement, but I'm looking for options in complements installed yet. Previously in Firefox we obtain a page with a listing of complements and the choice to change any option. Do you know what happened here? or help my memory

You should see a tab to open and see the extensions (complementos) on the about:addons page that gives the extensions list and a button to open the options of an extension if applicable.

See:

• https://support.mozilla.com/kb/Customizing+Firefox+with+add-ons