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When I click a link on a website, a new Firefox tab opens with this message: 400 Bad Request Request Header Or Cookie Too Large nginx/1.18.0 (Ubuntu). This is new behavior; it was working fine until yesterday. Can you tell me how to fix it?

I recently switched to Firefox from Chrome. I have been using Chrome for years and have lots of bookmarks and passwords and such that I want to transfer over. The thing is, I do not typically use a desktop; I use my iOS mobile devices. Is there a way to transfer my bookmarks in the app? Or am I required to use a desktop to complete this?

Hi Folks,

"Block pop-up windows" is enabled in Firefox, but I still get popups from www.smh.com.au Maybe you have time to investigate - a different type of popup needs blocking.

Sample page https://www.smh.com.au/politics/federal/inflation-tipped-to-fall-while-rent-costs-to-buck-trend-with-15-year-high-20230721-p5dqbj.html

Thanks

Did Not Connect: Potential Security Issue

Firefox detected a potential security threat and did not continue to www.google.com because this website requires a secure connection.

What can you do about it?

www.google.com has a security policy called HTTP Strict Transport Security (HSTS), which means that Firefox can only connect to it securely. You can’t add an exception to visit this site.

The issue is most likely with the website, and there is nothing you can do to resolve it.

If you are on a corporate network or using anti-virus software, you can reach out to the support teams for assistance. You can also notify the website’s administrator about the problem.

When clicking advanced button there is no way to proceed:

Someone could be trying to impersonate the site and you should not continue.

Websites prove their identity via certificates. Firefox does not trust www.google.com because its certificate issuer is unknown, the certificate is self-signed, or the server is not sending the correct intermediate certificates.

Error code: SEC_ERROR_UNKNOWN_ISSUER

View Certificate

Firefox was working fine yesterday. But all of a sudden while playing a youtube video it started being choppy. It drops frames, scrolling and video playback are choppy and laggy, there is lag on button inputs, the system is choppy and laggy too while firefox is open, especially when video is playing. I checked the CPU and GPU usage and I can't see any spikes. I have tried refreshing firefox but that did not fix the problem.

OS is manjaro linux (gnome version) latest. Firefox is also at the latest version.

I am using firefox 102.0(64 bit) on windows 10. Recently some videos i watch have Error Code: 232011. Also I can't drag and drop shortcuts of certain sites to desktop or folders. It installs an empty file folder.

My account shows no bookmarks. On phone 1, I have several collections, no bookmarks. On phone 2 I have nothing. How do I get the links (from my collections) on phone 1 to transfer to phone 2? When I sync nothing happens (I understand collections don't sync). I would expect all my links would sync as bookmarks. They don't.

What's the fix?

Do I need to click each phone 1 link, add to bookmarks, sync, then manually recreate collections on phone 2? Collections is a totally useless feature if you can't sync them (yeah, I read elsewhere that Firefox may add syncing in the future

I want to resize a window, without dragging the edges around. I've read the resizing instructions and am unable to find the "resize" icon next to the address bar. any help would be greatly appreciated.

How do I block autoplay vedio?

I know I can block Audio and Video, but I just want to block autoplay video. As if I use the block audio and video it will mute all videos I open, and I need to unmute it every time. I just want autoplay to not start, not mute the video too.

Every time I try to go to a .onion site I get a message saying "you are trying to reach an onion/hidden service. To access (site) via web you will have to use the tor browser" but I am on tor browser.

Hello,

When I try to open Outlook by using Firefox it does not. (Installed MS Office 365). When I use Microsoft Edge it does open so I can read the messages. I cleared the cache and it works the first time but when I try to access it again, it does not work. It just not upload the message.

Thank you, Dorina Grossu

I have tried with different commands lie ctrl+w,Ctrl+alt+F4 , like this everything is used to closed current tab or entire browser .I tried the other way right click on tab> close all tabs But i need a shortcuts to close all tabs except the current tab which were using. Could you please help me on this.Which will be more useful to me ..

When Night Mode is on, every picture looks color-inverted and spooky, so I need to switch to the light mode to see any images. It’s really frustrating since I much prefer the dark mode.