Donation pages not working
While making donations on various sites, suddenly the "confirm" or "continue" button no longer works when you want to move to the next page to complete credit card info, for example. It works just fine when using other browsers. And this is not just one donation site. I've seen the problem on at least 4 sites now. The buttons used to proceed are grayed out (inactive) for some reason.
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If you use extensions ("3-bar" menu button or Tools -> Add-ons -> Extensions) that can block content (Adblock Plus, NoScript, DuckDuckGo PE, Disconnect, Ghostery, Privacy Badger, uBlock Origin) always make sure such extensions do not block content.
- make sure your extensions and filters are updated to the latest version
- https://support.mozilla.org/en-US/kb/troubleshoot-extensions-themes-to-fix-problems
See also:
- https://support.mozilla.org/en-US/kb/enhanced-tracking-protection-firefox-desktop
- https://support.mozilla.org/en-US/kb/smartblock-enhanced-tracking-protection
- https://support.mozilla.org/en-US/kb/trackers-and-scripts-firefox-blocks-enhanced-track
This issue can be caused by corrupted cookies or blocked cookies.
- check the permissions for the domain in the currently selected tab in "Tools -> Page Info -> Permissions"