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Youtube does not work

Youtube does not work. It shows somekind of default page that is essentially blank. It does say: "Try searching to get started" and "Start watching videos to help u… (read more)

Youtube does not work. It shows somekind of default page that is essentially blank. It does say: "Try searching to get started" and "Start watching videos to help us build a feed of videos you'll love."

But it will not respond when I attempt to search anything.

Asked by Barry Soetoro 4 days ago

Last reply by glance-hull-aloha 3 days ago

Why browser caching sometimes shows old results for dynamic tools?

I recently noticed a scenario where a web tool loads updated data (via JavaScript and backend API), but the browser (and proxy cache) still serves outdated content when v… (read more)

I recently noticed a scenario where a web tool loads updated data (via JavaScript and backend API), but the browser (and proxy cache) still serves outdated content when viewed on a different device. Clearing the browser cache fixes it, but that’s not a scalable solution for users.

I’m curious: does Firefox’s caching behavior differ for pages that use heavy client-side updates (e.g., incremental score calculators) compared to standard static pages? Should we be explicitly sending cache-control headers like no-store or must-revalidate to prevent stale data?

Any documented guidance on how Firefox handles cache revalidation for dynamic web-apps would be helpful.

Thanks in advance for any pointers.

Asked by William Thomas 1 week ago

Last reply by jscher2000 - Support Volunteer 1 week ago

Issue with zstd compression decompression in Firefox

Hello Mozilla Support Team, I am writing to report a problem with the Mozilla Firefox browser. After the latest update, the browser appears to no longer decompress conte… (read more)

Hello Mozilla Support Team,

I am writing to report a problem with the Mozilla Firefox browser. After the latest update, the browser appears to no longer decompress content that is compressed using the zstd (Zstandard) algorithm.

Previously, I could view web pages or resources compressed with zstd without issue, but now they fail to display correctly (or give errors). I have tested this on multiple websites and different systems, which suggests the change is not specific to one site or machine.

Could you please clarify the following:

Has support for zstd‐compressed content been removed or disabled in the recent Firefox version?

If so, are there plans to restore this support in a future release?

Is there a workaround or configuration setting that allows enabling zstd decompression in the meantime?

Thank you for your attention to this matter. I appreciate your help in ensuring this functionality is restored or clarified.

Best regards, Oleh Boiko Windiws 10, FF 144.0.2

Asked by kinoteatr.ua 1 week ago

Last reply by jscher2000 - Support Volunteer 1 week ago

Full access to some websites not possible

I am unable to navigate around some websites beyond the page on which I have landed. The site briefly (split second) looks OK and then gets slightly greyed and no other l… (read more)

I am unable to navigate around some websites beyond the page on which I have landed. The site briefly (split second) looks OK and then gets slightly greyed and no other links on the site are accessible. Examples of sites: https://www.signia.net/en-gb/ https://www.flickr.com/

Anyone got any ideas?

Asked by Simon Ford 3 weeks ago

Last reply by Denys 1 week ago

Does not open Western Union

Hello. I can't access the Western Union website through Modzyl. The site opens on Edge. I disabled all add-ons, the browser tries to open the site and reloads the request… (read more)

Hello. I can't access the Western Union website through Modzyl. The site opens on Edge. I disabled all add-ons, the browser tries to open the site and reloads the request constantly. How to solve this problem?

Asked by Павло 2 weeks ago

Last reply by Denys 2 weeks ago