1. Create a directory to store APT repository keys if it doesn't exist:
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sudo install -d -m 0755 /etc/apt/keyrings
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wget -q https://packages.mozilla.org/apt/repo-signing-key.gpg -O- | sudo tee /etc/apt/keyrings/packages.mozilla.org.asc > /dev/null
3. The fingerprint should be 35BAA0B33E9EB396F59CA838C0BA5CE6DC6315A3:
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gpg -n -q --import --import-options import-show /etc/apt/keyrings/packages.mozilla.org.asc | awk '/pub/{getline; gsub(/^ +| +$/,""); print "\n"$0"\n"}'
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echo "deb [signed-by=/etc/apt/keyrings/packages.mozilla.org.asc] https://packages.mozilla.org/apt mozilla main" | sudo tee -a /etc/apt/sources.list.d/mozilla.list > /dev/null
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echo '
Package: *
Pin: origin packages.mozilla.org
Pin-Priority: 1000
' | sudo tee /etc/apt/preferences.d/mozilla
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sudo apt-get update && sudo apt-get install firefox
Set up different languages in Firefox with .deb files
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