Diễn đàn hỗ trợ Firefox

Hi Team,

I’m currently conducting a DevOps training session and we are using Firefox to inspect headers for a web app running inside a local Docker container (localhost:8080).

We've noticed that occasionally the 'Network' tab in DevTools fails to show the full response headers for our nginx proxy, even after clearing the cache. It works fine in other browsers, but I prefer using Firefox for our students because of the superior CSS Grid and Flexbox tools.

Is there a specific setting in about:config that might be limiting the capture of headers for local loopback addresses?

Thanks for the help!

Firefox stopped working properly this morning. whenever i try and open a new tab firefox tries to get me to setup sync instead of going to the new website. I turned off sync. I do not want to sync with anything at this time. How can i get firefox to work again?

I've just switched to Fedora 43 KDE plasma from Windows. On Windows, everything was totally find with videos on Firefox. After migration I kept having an error message "The media playback was aborted due to a corruption problem or because the media used features your browser did not support." not only on one site (else it could have been the site). After searching for solution here and on the Net, I found out that it's not related to Fedora but to Firefox when using Radeon RX7700XT on Linux (idem with several distros). And indeed, when installing other browser and testing them there was no problem, even with LibreWolf. So can you please take action as I like Firefox and I would not like to have to move everything to an other browser. And it seems that this problem has been around for at least two years ... which you should be ashamed of.

This is the most annoying behavior. For the most time I would like to use panel once or twice a day to ask some question to continue on conversation in some chat but whenever I close the AI chat-bot panel it resets its context and throws me onto the default page of the provider of my choosing. I have to click my way into the proper chat every time. Could a chat-bot panel keep its context or keep it session at the place where I left it?

When there is a field to fill in my credit card info, the info will appear and let me select the CC I want to use but when I move away from the field the CC info goes away.

this has only happened recently. I've cleared the cache and closed the browser, but the Grok home page keeps crashing the tab and Firefox reports this. OI'm using Windows 10 and Firefox v147.0.4

While attempting to change my password in my TrendMicro antivirus, it was suggested that I clear my Firefox "Cookies & Site Data" and I cannot find that option in Firefox. How do I accomplish this task presently--it used to be so easy.

Depuis peu , sous windows 7 il m'est impossible de placer des raccourcis de page web sur mon bureau , le clic gauche sur le cadenas puis deplacement vers le bureau indique un sens interdit . Cdt

I am using 140 ESR version on linux with Cloudflare's DNS over HTTPS and with DOH active for some reason resolving a domain like d3oklwo3y1bx83.cloudfront.net will resolve to local host IP 127.0.0.1.

I am using firefox about:networking#dnslookuptool to test resolution of the domain d3oklwo3y1bx83.cloudfront.net Both with DOH on and off the resolution remains local host. I tried another browser on the same workstation and I was able to receive a resolution of 13.225.193.203 13.225.193.133 13.225.193.64 13.225.193.58 Why is firefox ESR not able to resolve that domain? What are causes ?

Is is firefox dnslookuptool results.

Whenever I select text and click on the highlighted text, I'll try grabbing it at where the first letter is highlighted, since that's what I'm used to on any other platform, and it doesn't register, as if i clicked off of the highlight. It only happens when i try dragging it. is there a setting that can help change this to let me drag the first letter?

Mozilla made an update of my Firefox installation on my Win11 laptop. all my password disappeared as well as my history and bookmarks.

I have now a virgin installation and is starting from scratch.

Now I get this error message: "This profile was last used with a newer version of this application. Please create a new profile." I deleted met shortcut and I opened Firefox by using Windows search. Now I see 4 profiles! I think I do not need to create a new profile. Maybe delete 3 of them ? What to do ? And, how?

'I am running fiefox version 147.0.3 in MacOS version 26.2. Every second time I start the program firefox tries to take 15GB of memory. The process does not respond (as this is equivalent to more than the memory available plus the swap space). I have to kill the process and the second time the program has standar memory needs. How can I help developers?