Firefox Community Forum

In the Settings, the "HTTPS-Only" feature seems broken. There is an option to 'Don't enable" this feature, but that doesn't make any difference. I can get to an "http:" site using any other browser, but not with the latest Firefox.

When accessing the main search page my android phone is briefly loading an image of the Firefox logo that is all purple. It then starts loading the main search page. When I try to open a pinned site it is very slow and times out frequently. I'm concerned that I have a virus.

latest update seems to have broken firefox 155.0.1. It opens but then becomes unresponsive. Two different PC, both win 10. How can I revert to previous?

I can not get extra info from troubleshooting page cause FF won't open so as to be used.

I use the link provided in firefox help. It provides a window with a link to download a new version. but I click on the link, get an update window. I click on the download now and the download doesn't happen. It just sits there showing 0 bytes downloaded. How to update?

سلام. من میخواهم بدانم چطور باید در فایرفاکس مسدود کننده تبلیغات را تنظیم کنم. آیا اصلا راهی وجود دارد؟ به وب سایتی رفتم که گفته مسدود کننده تبلیغات من روشن است و با آن نمیتواند اجرا شود. لطفا کمک کنید تا بتوانم آن را خاموش کنم. با تشکر

System: Linux Mint 22.3 Xfce Firefox web-browser: mint-001 - 1.0 _ 155.0.1 (64-bit) Hardware: Both on my Desktop and Laptop computers.

Since the recent updates, 1-2 weeks, every time I try to enter a character via Unicode insertion, CTRL+ALT+U, the character does not insert but a row break. I made a video about it: https://youtu.be/OP9UCGpZdEc

This happens in every website I use; mostly likely on every website.

Is there anything I can do now?

Thank you for your time reading this. 🙇

Hello Mozilla Community,

We are experiencing an issue where our legal services web portal (hdclaims.co.uk) fails to load properly specifically for users on the latest version of Firefox on desktop.

Problem / Issue:

Users report receiving a SEC_ERROR_UNKNOWN_ISSUER error when attempting to access our online claims form.

The issue does not occur in Chromium-based browsers, but Firefox blocks the websocket connection required for live chat support.

Environment Details:

Browser: Firefox Desktop (Latest Version)

Website: hdclaims.co.uk

Server Setup: Nginx reverse proxy with LetsEncrypt / Cloudflare SSL certificate.

Steps Taken:

Verified intermediate CA certificates are properly chained on the origin server.

Tested with a fresh Firefox profile (no extensions enabled), but the security warning persists intermittent for UK users.

Checked SSL Labs report, which confirms an A+ grade.

Is there a specific cipher suite requirement or OCSP stapling configuration in Firefox that could cause this intermittent SSL handshake failure on .co.uk domains?

Any insights from the community would be appreciated!

I don't know if the F/F updates are legit; I used to get updates, once in while.Lately seems updates are every few days or everyday.Not sure if these are spam or getting hacked?

I want University Of The People student app restored on my new Mozila Firefox with Yahoo mail.com. I am a student and may drop out if I loose the contents I am asking for.