https://www.waterfox.com/support/cannot-remove-add-on-extension-or-theme/
Cannot remove an add-on (extension or theme) - Waterfox Support
cannot removewaterfox support
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https://jira.mariadb.org/browse/MDEV-37275
[MDEV-37275] Cannot remove default value of NOT NULL column - Jira
cannot removedefault value
https://developers.cloudflare.com/billing/resolve-cannot-remove-payment-method/
Resolve "cannot remove payment method" ยท Cloudflare Billing docs
This article will help if you are receiving an error that mentions one of the following errors when attempting to remove a payment method:
cloudflare billing docscannot