Firefox Community Forum

I am having a problem with FireFox: using DuckDuckGo as a search engine I only get a white page with a search window at the top as a result. DuckDuckGo works fine in Safari as I am typing this. Other search engines work fine in FireFox.

I have tried running FireFox in troubleshoot mode and then manually disabling extensions one by one but the issue persists. It makes no difference whether I am using the URL box, the search box or the DuckDuckGo website: the result is always the same. I am not using Metamask and I have no VPN installed.

Any idea is greatly appreciated.

Have an app with a web interface that I used for years, but not with several of the latest versions of FF. Chrome, Edge, and DuckDuckGo all show the page as expected and the page functions properly.

URL: http://127.0.0.1:8384/ Error looks like this:

Unable to connect

Firefox can’t establish a connection to the server at 127.0.0.1:[port number].

   The site could be temporarily unavailable or too busy. Try again in a few moments.
   If you are unable to load any pages, check your computer’s network connection.
   If your computer or network is protected by a firewall or proxy, make sure that Firefox is permitted to access the web.

Have tried a large number of things including:

Ping works for ip and hostname, v4 and v6 Confirmed address is accessible through other browsers Disabled extensions Added exceptions in Settings for HTTPS-only mode Various settings in about:config, careful to return them to previous states when they didn't fix the problem Tried Safe Mode (aka Troubleshoot Mode) Refreshed Firefox (as prompted before uninstalling)

My last step is to reinstall, but thought I'd ask here first. Has anyone seen this before?

I have a Mac and downloaded the Firefox application. I opened it in Applications, and it wouldn't open noting: "Your Firefox profile cannot be loaded. It may be missing or inaccessible." I followed the directions by going into my terminal with the following: /Applications/Firefox.app/Contents/MacOS/firefox -P

But I am getting the same message about the Firefox profile. Firefox will not open, any other suggestions??

Hi everyone,

I have a quick question.

Our product uses Firefox, but on March 14, 2025, the root certificate expired, and now we can't use add-ons. If we update Firefox to a newer version, the add-ons start working again—but do you know how long the certificate in the new version will be valid?

Looking forward to your reply.

why does my mozilla firefox hang and ask me to restore session and the tabs dont open up or take a long time . please send answer to [email removed]@yahoo.com. it took a while for sign in page to show up so i could sign into yahoo.com

A new problem..one I've never had before. I cannot connect to my Ally Bank site using Firefox. I looked at help pages but they just confuse me. Can you give me info ( step by step if necessary) that will get me to Ally? .

Hi All,

All of a sudden cannot access facebook marketplace/birthdays has a blue loading line at the top of the screen ( attached) however doesn't load.

Tried deleting cache, logging in/out, restarting computer etc..

Many thanks

Sean

I am an old Firefox user who has been using Chrome for quite some time and now decided to go back. And now I'm wondering where the hell is the “skip all stupid warnings” button when I go to a site I trust but which nevertheless has a self-signed certificate, because I know for a fact that there used to be such a button. Moreover, your guide offers me to click the “additional” button, where I supposedly can find this very cherished button. But it's not there! So, it would be okay, specifying this site in the exceptions in the settings - that doesn't help either. Why should I waste my time on this?

On Firefox ONLY, when navigating to multiple sites, I'm getting "Access Blocked. We detected unusual activity from your device or network. Reasons may include: Rapid taps or clicks JavaScript disabled or not working Automated (bot) activity on your network (IP 97.140.47.209) Use of developer or inspection tools." ID: 448c1aee-5d22-9619-629b-3ab812753b6e."

I have email Mozilla for help and have searched for solutions and have found none. Most recently is happened on Etsy. Does not happen if I use Duck Duck Go, Chrome or Edge.

I’ve noticed that Firefox consumes a lot of memory, especially when I have multiple tabs open. Sometimes, it slows down my entire system, and Task Manager shows Firefox using over 1GB of RAM even with just a few tabs. Other browsers like Chrome or Edge seem to handle memory better with the same number of tabs.

I’ve tried restarting Firefox, closing unused tabs, and disabling a few extensions, but the problem keeps coming back. I even checked techsquest.com for tips, but I’m still struggling. Are there specific settings, hidden features, or optimizations I can apply to reduce Firefox’s memory usage without sacrificing performance?

Here’s what I’ve already checked:

Firefox is updated to the latest version.

No unusual extensions running (just uBlock Origin and Dark Reader).

Hardware acceleration is enabled.

Any help would be appreciated—thanks in advance!

I noticed today that credit card fields are completely disabled in Firefox. I'm not talking about autofill, which i don't normally use anyway - I can't even select these fields to input data. This is affecting multiple sites that are not related. Any ideas?