Firefox Community Forum

Current Behavior When Firefox is set to offline mode (File → Work Offline), the Developer Tools Network tab does not display request body of requests that web applications attempt to make. This creates a significant gap in debugging capabilities, as developers cannot inspect request payloads details that would normally be visible.

Requested Enhancement Enable the Network tab to capture and display attempted network requests payload even when offline mode is enabled

I find it a bit concerning that when receiving an email from Firefox about a new sign-in, Win 10 is given instead of Win 11. They should be able to tell which version I am running. Maybe this is Relay for Windows versions LOL.

Has anybody else found this issue?

Windows 11. I have my taskbar behaviour set to ‘Automatically hide the Taskbar’ So usually the Taskbar is not displayed, but when I move my cursor to the bottom of the screen it reappears. With Firefox I cannot make the Taskbar reappear.

Using Firevox 142.0.1 on a MacBook Air. I always have "Always ask you where to save files" checked in Preferences, but lately it sometimes fails to ask me. For example, if I try to download a file from Google Drive. Is anyone else having this problem? Is there something I can do about it?

I noticed that Firefox updated today or recently. I am having a lot of trouble with the browser today. Many complex pages aren't loading and just have overlapping photo icons. I can't use certain pages where I enter and save data. When I try these pages on chrome they open without problem. Is this some firewall that is over the top or is it something happening only today? Because if Firefox is like this now, I'll have to stop using it.

There are times that when I open firefox that some of my tabs that does this weird thing where my tabs from the previous session that I left doesn't load up, from what I see is a blank tab that doesn't access the sites I left. It's been twice since I encountered this and I can't replicate the issue. When it happens I try checking out the recently closed tabs or window it doesn't show the ones that didn't show up.

Hmm. We’re having trouble finding that site.

We can’t connect to the server at data.digital.costco.com.

I was previously successfully using the translate selection with the translate dialog automatically detecting the language of the selected text. Then, with that dialog open, I tried changing the from/to language - you know, just messing around - and now it refuses to automatically detect the language. It is now stuck on Tranlate to French. I've checked my settings page and my default language is English. Where is it getting the idea I'm French? Annoying af.

How can I get the automatic language selection to English as it previously was?

NOTE: As I was composing this request, I visited the Amazon store - as that's where I use the feature most - and noticed it's probably the tool itself that's broken recently as it was getting it right all the time before but now it's hit or miss. Again, annoying af especially because I've come to rely on this a lot. Please fix.

Hey, I've been experiencing my YouTube and Twitch tabs crashing almost every 20-40 minutes and it's been kind of annoying.

Does anyone know if the crashes are because of my drivers or Windows not being up to date? Never had this issue with Opera before.

Here are the crash reports: link text link text link text link text link text link text link text

On Linux, clicking the X in the upper right hand corner of the Firefox display, or entering CTRL-W kills Firefox with no warning. It would be nice if there was an alert that came up asking "Are you sure if you want to kill Firefox?". Or at least add an option for this in Settings.

I was customizing my background by loading a picture. It's adult in nature. It should be my computer in my in my private home. When something amazing started happening. If I load ANY image with a naked woman on it After a few minutes Fire fox auto removes it. I have done this 30 times. I use ANY fire fox picture it's fine stays there forever. Load ANY picture with a naked woman on it and poof 2 minutes later it's gone. So please can you explain to me why whats claimed to be the most private and secure browser around is censoring me in my own home about what backgrounds I can have? I find this highly disturbing. And I am quite serious I have had them removed at least 30 times. I'm 56 y/o If I want a naked woman on my background it should be my business not fire foxes. Also no chrome is not doing it. neither is windows. It's Firefox removing them. Any explanation would be nice.

Ubuntu - I use the SNAP version of Firefox - I generally have lots of tabs open but only use 5 or so of them and it's generally fine.... but when I am closing Firefox, it USES like 100% of the CPU and ALL of the RAM and ALL of the SWAP memory when closing.

This locks up the computer.

Sometimes it doesn't quite go all the way but I can watch it all happen in real time, using Task Manager - and that shows a solidwall of all resources occouring, when the close Firefox is run.

I am told by research via ChatGPT that this is a very real problem with the SNAP version and it's best to change to the Debian version, copy all the bookmarks etc., across and then uninstall the SNAP version.

It's rather disconcerting to have Linux crash because of this one app locking it up and frequently.

Chat GPT:

Is there a problem with Firefox Snap Version closing and using all the resources while doing so, which results in locking up the computer?

You're definitely not imagining it—there have been reports of Firefox's Snap version consuming excessive system resources (CPU, memory) and even causing lockups or hangs, particularly during closure. Here's what’s going on and how to mitigate it:

What’s Happening with Firefox Snap?

2. Browser Hangs or Locks the System on Close

On Linux (especially Ubuntu), users have reported that closing Firefox can lead to it hanging in memory, sometimes unresponsive and still consuming resources.
Super User
Ask Ubuntu
A stark example from Reddit illustrates the severity:
“About 50% of the time I open Firefox, it'll reach 100% CPU usage in about 30 seconds… PC completely unusable unless I shutdown.”
Reddit

3. Known Wayland Sway Bug

On Wayland/Sway setups, reloading Sway while Firefox is open can trigger intense logging, causing high CPU use and an enormous syslog.
Fix: Set MOZ_DISABLE_WAYLAND_PROXY=1, or upgrade to FF 125 where the issue is addressed.
Reddit+1

Alternative Approach

Many users, particularly on Ubuntu, opt out of Snap completely in favor of the .deb package or PPA builds. These alternatives often avoid these specific issues. Ask Ubuntu Reddit

Thoughts? Solutions?

Thanks in advance.

An error occurred during a connection to www.amazon.com. PR_CONNECT_RESET_ERROR and sometimes An error occurred during a connection to www.amazon.com. PR_END_OF_FILE_ERROR

This does not occur on Edge.

I've cleared browsing data and cookies as well as changed network settings from "Use System Proxy Settings" to "Auto detect Proxy Settings from this Network" (because one trouble-shooting site suggested it might resolve the issue)

What's going on?

Is it time to finally dump Firefox for Edge after more than 15 years of loyalty?

I do not have a screen shot of the PR_CONNECT_RESET_ERROR.

I am unable to sign into the iCloud web page on Firefox. I can sign in on Microsoft Edge, or on the Safari browser on my phone, so this is clearly a Firefox specific problem. When I try to sign in, the page skips the option that verifies my identity and goes straight to a message saying "Failed to verify your identity, Try again" without allowing the verification to occur. The verification would occur if the page would allow it to, as it does in the other browsers I mentioned. This was working fine last time I logged in a few days ago, so this is a new problem. I could switch over to Edge, but would prefer to use Firefox, if I can. Please help me. Thank you.