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Why does Firefox not allow Ecosia?

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When Firefox updates, it removes Ecosia from the search engine list. Now, when I try to install it, Firefox says it is installed, but I can't find it. If I try installing again, the same thing happens, and it is not installed.

When Firefox updates, it removes Ecosia from the search engine list. Now, when I try to install it, Firefox says it is installed, but I can't find it. If I try installing again, the same thing happens, and it is not installed.

All Replies (2)

Try the steps at Use the Search bar in Firefox and manage search engines to add your custom search engine.

Try to delete the search.json file and possible search-metadata.json and search.sqlite files in the Firefox profile folder to reset the search engines to the default. You can use this button to go to the currently used Firefox profile folder:

Firefox will rebuild the search.json file from the default search engines in the "browser\searchplugins" folder in the Firefox program folder and the searchplugins folder in the Firefox profile folder.