Diễn đàn hỗ trợ Firefox

In Firefox, recently I am unable to download pdf documents. I get the message "download failed". If I request the same download using Chrome, I get the download immediately. But Firefox is my default browser and it's a nuisance. This only started in the past month or so.

I always shut down my PC (Windows 11) while Firefox is open, and it reopens automatically when I turn it back on. However, the settings and the layout are reset.

I tried closing the browser normally via the Close button, but the issue persists.

I tried killing the process via Task Manager, but the issue persists.

I'm not opted into Firefox Studies.

I use quite a few extensions and also Container Tabs. I tried disabling all extensions, but the issue persists.

I just can't disable Container Tabs to test because I would lose too many tabs. Could Container Tabs be the issue?

sINCE 36 HOURS AGO WHEN I START FIREFOX I GET AN ERROR SAYING Firefox is already running close the application or cancel I choose close and i get the message over and over if i choose cancel nothing happens the task manager show FireFox (3) running and my only way out of the look is to end task I was fond of firefox but there seems no way out of this conundrum

Hi

When I use Firefox to act as a browser to search for topics I get the error message

EC_ERROR_REVOKED_CERTIFICATE

I am now having to use "Bing" to search

This has been going on for a long time

Thanks Gareth

when i open FF 137 on my imac running OS 12.7.6, it just keep trying and trying with no link. when i try and quit it needs to be forced quick to stop running. There are no fire walls and it worked yesterday 4-5-25 just fine, but no go today. I tried replacing FF and still no luck, what do i try now, Tucsonmac@yahoo.com

When I sign in from my desktop I forgot my password and by clicking on forgot password And I saw different mobile no had been added so how can I change my mobile number so that the code can come on my new mobile number

ESO login site is a public safety site that can't be loaded by Mozilla Firefox. https://www.esosuite.net/login/

It was working and then stopped in all three completely different networks and IOS. After using this site extensively for a long time after 1/15/2025 it stopped loading. It works in other browsers immediately.

This issue happens in:

Firefox Android with Att network Firefox Desktop with private IS provider Firefox Desktop with another private network

This site is the only one not working in three different devices, three different networks. Nothing was updated or changed. One day it just stopped showing the page with no error messages. Site works fine with chrome browser. Very Odd. I have tried to reload the app in the android device with no success accessing the site.

A webpage I just closed recently is not listed in the drop down window from History and also Recently closed tabs. In addition sometimes when I click on the Back arrow, it does not go back and when I have right clicked on the Back arrow, it has shown previous webpages.

Lately, every time, every time, EVERY TIME, I have to restart my computer or Firefox, its like frigging Groundhog Day with Firefox. I have to go to Settings and re-select the "Ask to keep passwords" option. Every time. Why doesn't that stay on? I have to log into all my sites again with all my logins like its the 1st time. Like its Groundhog Day again. And I have to re-load all my pinned tabs again. Again. AGAIN. One of the things I used to like about Firefox was that you kept things simple and didn't make me crazy. Why start now? I don't want to spend 20-30 minutes every time resetting my browser just so I can get work done. I'm not Bill Murray. How do I kill this frigging ground hog or do I go looking for the duck? I can't work like this

Hi. Populating stored credit card data used to be working fine, but has stopped working on my desktop PC several moths ago (at least). When I click on one of the stored credit cards on a payment page, nothing gets populated in the fields. That happens with all stored cards. On my laptop PC that has a fingerprint sensor the populating of credit card data still works, but now I'm being asked for a fingerprint. Before I didn't need to provide my fingerprint to use the stored credit card data. I assume by the different behaviors of the desktop and laptop machines that at some point some "security feature" has been added to Firefox that broke usage of the stored credit card data on my desktop PC. What is that and how can I disable it?

When I first open Firefox from the icon in my taskbar the opening window says the following:

'Unable to connect Firefox can’t establish a connection to the server at 0.0.0.4. 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.'

However this is only the first window, after that I can open a new tab in the same window without any problems.

I have uninstalled and reinstalled Firefox without avail. Can anyone help please?