My suggestion is a shortcut that enables or disables plugins/ extensions globally.
Similar to troubleshoot mode but instead of restarting Firefox and more it only disable all add-ons or alternatively specific ones chosen by the user. The usefulness of this is that some websites stop working by add-ons or simply work better without certain add-ons; sometimes you might also want to support the website's author through disabling ad-blockers or similar add-ons.
Thanks for your attention
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Dosefnt ublock offer a whitelist solution on mobile? Its called "trusted sites" there