Add consearch to your browser:
- In firefox desktop this is done via the search bar or the ⋯-button in the address bar.
- In firefox for android: Go to settings → search → add search engine → other, add a name (like consearch) and the url 'https://fpunktk.de/consearch/index.php#%s'
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If this does not work then consearch can perhaps be added via the following form (right-click the input and select 'Add a Keyword for this Search...'), but this will send all queries to the server and is therefore not recommended.