capacha missing Malwarebytes Browser Guard is the cause of problem, disable it.

I have seen this numerous times, and certainly it DOES happen when Browser Guard blocks EASYLIST.

Here is a typical one: https://www.grandstream.com/newsletter-sign-up

Although EASYLIST is actually an anti-tracking function in itself, many sites use it as an additional BOT auto software block, as part of the reCapcha test/challenge JS scripts(A type of Turing test to prove the user is a human).

From what I hear from MalwareBytes, the developers of Browser Guard, Mozilla ORG is preventing the extension from being updated to the later 3.x.x versions (from 2.6.27 last updated June 2024).

The later versions should fix this issue. In the meantime, just click on the Browser Guard icon, if you get a log in or sign-up issue on specific site, see if EASYLIST is being blocked, and if so, click on the 3 dots, and choose unblock. Then click anywhere outside the Browser Guard fly-out window, your selected site page should get refreshed automatically, then try again.

Thanks for pointing that out td47! I've been tracking this issue as well since last year & I couldn't understand why MalwareBytes hadn't fixed it yet. Are you getting that information about Mozilla blocking a newer update to the Browser Guard extension from the MalwareBytes forum or somewhere else? I'd appreciate a link to where you found that being discussed so I can raise it to the attention of some higher level folks who can get fixing that prioritized. Or they can at least explain why the addon is not being allowed to update. But I haven't heard that Mozilla is doing this on purpose. Thanks in advance.

I found that old 2.6.27 version you're talking about on: https://addons.mozilla.org/en-US/firefox/addon/malwarebytes/

But doesn't MalwareBytes install the newer addon when you install or update the main MalwareBytes program? I would think it could bypass any old Browser Guard addon stored in Firefox.

@NoahSUMO thanks for quick reply (I also raised this as a separate issue on this forum). Yes, I DID first raise this with MalwareBytes, and got the statement about Mozilla blocking later updates from one of their key moderators Porthos. Here is the link (see latest response for this): https://forums.malwarebytes.com/topic/321370-bg-blocking-easylist-often-blocks-account-sign-ups-and-subscribe-adding/

By the way, I have read about Extensions being blocked before by Firefox code, as it has the power to do so, so it is not a stretch to imagine selective blocking for later versions. Unless of course Malwarebytes have made a mistake, and think that all versions >3 are still blocked, so code accordingly?