Firefox Community Forum

Opening PDFs automatically with Firefox and, without any changes I might make, saving them with the download function in Firefox, actually ruins the functionality and data entry function of that file. Specifically this happens with PDF files downloaded from the (not all that amusing) PDFs from the FINCEN, (US Financial Crimes Enforcement Network). I do not see why and how Firefox thinks it is allowed to change files that are simply downloaded and saved on Firefox.

In other words, it seems that Firefox strips away certain "permissions" and/or "functions" (like built-in lookup, menu or choice boxes). This means that the file so downloaded via Firefox can no longer be used to properly fill in data, or to look up and choose data items within the file. (I see many times that ANYTHING having to do with "permissions" tends to be an intractable and unsolvable problem for software makers & experts, so, if you do not know right away how to solve the problem, it will probably take you several years to figure this out.)

The PDF in question is created by a government agency. If you have ever dealt with a government agency, then you know that they act sort of like Adobe or Microsoft: "They don't respond, or they do respond & say they do not understand, and if they understand, they are either unwilling or unable to fix the problem."

If there is a switch or option within Firefox, which lets me tell Firefox "Save this file exactly like it is received, nothing added or removed!", that would be nice. I just have not found such an option yet, and it would be nice if it might get provided someday.

I will share my browser data, but I am sort of convinced that a detailed question like mine will not be addressed within that shared data.

If I'm using the built in VPN no pages will load, regardless of the location I pick. I did not have this issue previously, I've only first saw it the other day. No websites seem to work and as long as I have the VPN turned off everything works fine.

After today's Firefox update (7/30/26), I can't activate DuckDuckGo search. When I type a search in the URL bar, if i select a bookmarked URL, it will launch the bookmarked URL. However, if I select a search query (ex. "sonicare toothbrush" in attached pic #1), it won't allow me to press enter to launch a search.

Under Settings, when I click on "Activate" DuckDuckGo search (attached pic #2), nothing happens.

Hi,

Over the weekend we had a break-in in our apartment and the laptop i use for work was stolen. I used Mozilla has my primary browser and had all the tabs and password i use on a regular basis saved there. As such I panicked a little and removed that PC from the synced units on my account. Now it seems I have no way to regain that information.

Is there anything I can do?

Thanks in advance, and best wishes

Hello, I am hoping someone can help me. I am getting white pixels/lines during youtube play back. There is only ever one at a time. I do not get it every time I watch a video. The lines move with the player if I move the browser.

I have tried: Updating Firefox/drivers Turning Hardware acceleration on/off Setting Firefox to use the dGPU Changing the Optimus mode

I am using Windows 11 and have a Legion 7i Pro Gen 8

I have uploaded an image that shows the line. The line appears in the grass on the right.

Many thanks

Hi, I'm trying to pair my devices but it gets to the authenticator step but doesn't say which authenticator it needs. Is there another step I should be taking? Lou

is there any way to disable the screen recording ban? my job really needs me to be able to access clips of videos so downloading the whole video is not an option, but recently it seems firefox banned that. is there any fix or do i need to switch browsers?

I am running into a 414 error that prevents me from accessing account information in Kindle Direct Publishing, has anyone else run into this problem? I log in and get to the home page of KDP ok, clicking on Account opens dialogue box to log in again, and I get 414 error, which KDP help AI says is browser related. I've tried using incognito, turning off VPN, there are no extensions turned on, going directly to the Account Settings link gives same error. I tried using another browser (Safari) and get same error.

Firefox 155.0.1

Thanks for any other suggestions!

I set value to true to disable IPv6 and it worked for some websites, but not all. Works fine in Opera browser. Further corrections are more technical than I can handle. What should I do? I turned on logging, but don't know how to upload it.

Hi, Firefox is hard to use for me right now. The screen turns sometimes black while using the browser. Especially when opening pdf documents in Firefox the screen turns black before the document opens. Also, after switching to another tab or App the pdf is not visible anymore and also black (see sreenshot). I have tried reinstalling Firefox and also start in troubleshoot mode. What is the issue??

Thanks.

Sebastian

The following content is machine translated: The passkey feature (login via QR code scanning with a mobile phone) is not available the Linux version of Firefox. Compared to Windows and macOS, the Linux version does not have a passkey option when logging in; it only has a "security key."(as shown in the image) I cannot use the pass key saved on my iPhone to log in to websites, which is very frustrating. Is this a bug or an incomplete feature? Thank you for your reply. device: archlinux

Untranslated (chinese) : 通行密钥功能（通过手机扫描二维码登录）在linux版的firefox上并不能使用，相比windows和macos，linux版在登录时并没有通行密钥选项，只有一个“安全密钥”（如图），我无法使用保存在iPhone上的通行密钥来登录网站，这很令人沮丧，这是一个bug还是没有完成的功能？感谢您的回复 设备：archlinux