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.

Hi team,

I am facing a persistent video playback issue specifically in Firefox (latest version), while the exact same stream works perfectly fine on Google Chrome and VLC player.

When I try to play a high-definition HLS live stream from my network provider site (vraitv.com), the video stalls and buffers every few seconds. Upon inspecting the Firefox Web Developer Console, I notice frequent NS_ERROR_NET_TIMEOUT errors during the loading of .ts video chunks, along with occasional CORS warning flags.

I have already tried the following troubleshooting steps:

1. Disabled Enhanced Tracking Protection for the site. 2. Started Firefox in Troubleshoot Mode (Safe Mode) with all extensions disabled. 3. Cleared all cookies and site cache.

Unfortunately, the issue persists. Are there any hidden settings in about:config (such as modifying network.http.max-persistent-connections-per-server or increasing the media cache size) that can optimize how Firefox handles concurrent video chunk loading?

Any technical guidance would be highly appreciated.

I get the error msg. "Firefox is already running. Would You like to exit Firefox? Yes or No"

I enter Yes and Firefox starts normally. This usually happens after a Firefox update or sometimes when I exit Firefox normally. I use Windows 10 if that makes a difference.

I would appreiciate any hep. thanks Ed..

I had all 32 homepage shortcut tiles in use. I tried to replace 3 of them, but, after removing those 3, the last 3 tiles won't appear under cursor. I just have dead page space under cursor where those 3 tiles should be. There is no page reaction to hovering cursor over those spots.

TIA, joe

(Categorized as "accessibility" because I feel this is a vision-related issue - if I mistagged the topic please correct me... I don't know where aesthetic issues go.)

Image 1 is how the file explorer looks with a lighter Firefox theme (my main one), Image 2 is with a slightly darker theme. Both are primarily light blue, so I'm not sure why this has happened.

I have my computer and most websites I use on dark mode because I have an easier time reading white on black or dark grey than I do black on white when it gets later in the day. I want to be able to have the darker file explorer with my theme of choice, since light mode kind of burns my eyes...

Is this a new feature added in the most recent update, or something? I haven't had this issue prior to today - if it's a new thing, is there a way to turn off the light file explorer so that I don't have to change themes?

Help please, cannot open Firefox browser for Windows 10 Pro anymore, clicking icon advises my profile is missing. How to fix ? Ive also spotted a number of folders properties are showing the target as an A:\Users path rather than the expected C:\Users but the path is 'greyed out' and cannot be edited, help much appreciated

im loged in to firefox and i want to change from 1 of my profiles to another one of my 3 profile but it wont let me choose on of the other profile it show them to me but cant pick one ?i have work to do and i cant get anythiing done because of this ?

I am trying to print a statement, In the text itself it is the correct font size; however, when I print it is so small I can hardly read it. How do I increase the size of the printed statement

About every 1/2 hour I get this popup asking how to open a spotify link, with spotify or Firefox. see image that's great if I've actually clicked on a spotify link, but I haven't clicked on any links. So it's pretty annoying I'm fully updated on 152.0.3 (64 bit) window 11 up to date any ideas how to stop this?

i have some problems with HDR settings on my firefox for mac when i watch a youtube video in the middle of video it kinda decrease the brightness or apply a gray filter on screen or something like that

Over the past week or so, I've been finding that Youtube videos don't start from the very beginning - the very opening is missing.

So as examples, you're playing a song that you know starts directly on a beat, but that first beat gets missed, or there will be an opening sentence such as "Everybody is talking about the latest... " and what you hear is more like "Vrybody" - you can clearly hear that It's slightly off.

This relates to Firefox in three ways.

My initial thought was that there is some conflict with using an Adblocker (uBlock in my case) as Youtube is trying to force a pre-video ad that won't play, but even with the adblocker disabled the problem persists.

I then cleared my Firefox Youtube history so it loads as a completely fresh version - but the problem is still there.

Finally, I tried the same video on Chrome to see if this is definitely a Youtube issue...and it plays correctly without a problem.

Therefore, the problem seems confined to Firefox but I am unsure where - what setting needs to get tweaked to sort this out?

After many years of using Firefox with Dashlane, all of a sudden it stopped autofilling User names & Passwords. Hopefully this problem will be fixed soon, or I'll have to switch to Edge for my browser. I love Firefox so I don't want to have to do this.

duplicate of /questions/1586346 thread

Feedback on Firefox Widgets – Missing Indian Standard Time (IST)

I noticed that the World Clock widget includes Pakistan Standard Time (PKT) but does not provide an option for Indian Standard Time (IST). This is surprising given that India has one of the world's largest internet user bases and a significantly larger population than many countries currently represented.

India operates on a unique UTC+5:30 time zone used by over 1.4 billion people, making it one of the most widely used time zones globally. The absence of IST while neighboring time zones are available feels like a major oversight and reduces the usefulness of the widget for Indian users and anyone who regularly works with Indian colleagues, clients, friends, or family.

Please consider adding Indian Standard Time (IST) to the World Clock widget as a standard option. Its inclusion would greatly improve the widget's global coverage and usability.

I have been on this OS for many months, uploading from the photos library to a website community I'm a long-standing member of, uploading was never a problem until a couple weeks ago. Now, when I go to upload, the link connects only to my "media library" and random photos - I can't select what I need. I had an online chat w/Apple support for the past hour. Tried other browsers (using Firefox) such as safari and brave. Same problem. I created a new user and used other browser. Problem still happened.

Is there a permission issue? Or, should I download the new Tahoe OS and see if that fixes the problem?

Since the theme update Firefox won't show the correct minimize, full screen and close buttons icons

Firefox version:152.0.3 System:

 Kernel: 6.8.0-117-generic arch: x86_64 bits: 64 compiler: gcc v: 13.3.0 clocksource: tsc
 Desktop: Cinnamon v: 6.6.7 tk: GTK v: 3.24.41 wm: Muffin v: 6.6.3 vt: 7 dm: LightDM v: 1.30.0
   Distro: Linux Mint 22.3 Zena base: Ubuntu 24.04 noble

Hello and I hope you are doing good,

Sadly for me it is absolutely not the case It has been a few days since I can't use Firefox at all. When I try to open it, it tells that there is a "side by side error" and that I should use sxstrace.exe. I did that and it tells me that It can't find mozglue, mozglue.MANIFEST, mozglue.DLL. I use Mozilla in French (it is my mother tongue), and it can't find them in French, English or in Neutral :

Thinking it was also linked to the Redistribuables Microsoft Visual C++, I just downloaded all of them again.

My version of Mozilla is 152.0.6.595 and I am on Windows 10.

Please I really need your help and don't want to lose any of my tabs, bookmarks and passwords as I was making very important research for my PHD studies.

Real thanks in advance for your help.