I-Firefox Community Forum

Important update! On March 14, 2025, a critical root certificate in Firefox will expire. If you’re still using an older version (before Firefox 128 or ESR 115.13+), it’s crucial to update to Firefox 128 or newer to avoid issues with add-ons, DRM-protected content, and other features.

For full details, check out Update Firefox to prevent add-ons issues from root certificate expiration.

If you have questions about the update or need help with the process, this is the place to ask! Whether you’re just starting or you’ve already updated and want to share your experience, we’d love to hear from you.

Let’s come together, share tips, and ensure we’re all prepared. Drop your questions or insights below!

I am running Windows 11 and the latest version of Firefox. Firefox was working perfectly yesterday, but today when I tried to open it, I got the message "This app can't run on your PC". What could be the problem and how do I fix it?

Thanks,

David

I just updated Firefox only because I got an email saying my version would no longer be supported. EVERY TIME I update something goes wrong. This time the SEARCH field on my address bar disappeared--I can't do searches. HOW DO I FIX THIS? ALways next to the address was a place for inputting searches--WHY would you disappear this? Also WHY is the pointer so large I can't read text underneath when I roll over icons?

anyaparadiso@pm.me

My license no is : [edited]

Thank you for purchasing the DownloadHelper Video Conversion License for Firefox.

Your personal registration code is: [edited]

If you purchased this license from the browser you intend to use it on, it should already be registered and you should be able to use the product immediately.

Otherwise, or if you want to reinstall your license in your browser, visit that link: https://www.downloadhelper.net/register.php?license= [edited]

You can also use Video DownloadHelper settings: https://github.com/aclap-dev/video-downloadhelper/wiki/V9-interface#validate-your-license-key

You can access your invoice at https://www.downloadhelper.net/show-invoice?invoice= [edited] Best regards,

The DownloadHelper Team

Most of the extensions and applications do not work (VPN...), although they also function on other browsers. Moreover, I see that other FireFox users use them, but for me they don’t even respond to opening. And I don't know who to turn to. My language is Russian. I do translation in Google. I apologize for bad English. But I will be grateful if someday I receive an answer. Example vpn-1click with an empty square. The other did not respond to pressing the power button. The third one simply had a black background. I can’t understand what’s happening. And I need help.

I am unable to replace Microsoft Edge with Firefox as default browser in windows 10. Found solutions do not work. Microsoft Edge is locked in & cannot be moved or deleted. Firefox browser opens but most searches are by Edge. After much effort I finally got Firefox listed as a default app but again must searches are by Edge.

Due to a technical issue, I've deleted Firefox and re-downloaded it. However, the SHA hash doesn't match. shasum -a 256 [path]/Firefox 134.0.2.dmg shows a hash of:

c87eade89ddf5d1996766840809b5d415d91ecb696326b4f1f92210200978d21

but that hash doesn't show anywhere on https://releases.mozilla.org/pub/firefox/releases/134.0.2/SHA256SUMS

mac/en-US/Firefox 134.0.2.dmg shows a SHA sum of:

7832a8d1e1a13322dec1b52d32e1e64d2b6254de8348575f2d22af4975d56a85

which is completely different.

I re-downloaded it, this time from https://www.mozilla.org/en-US/firefox/all/desktop-release/osx/en-US/, and this time the SHA sum is:

47e1c3b84e79d331842ccf994be56cd423126eaca6acfd1664d668cf48f98de0

which is yet different, and is also not found on https://releases.mozilla.org/pub/firefox/releases/134.0.2/SHA256SUMS

What's going on? Why can't I get a matching SHA sum?