Firefox Community Forum

I have bookmarks for the application Obsidian, which uses the obsidian:// protocol, registered in Windows. I type the bookmark keyword, it opens the protocol, and asks to confirm whether I not want to open it.

While I wish I could get rid of the entire dialog, I understand that's a security risk, and I understand that the manual delay is ALSO a security detail (to prevent errant or intentional mis-clicks by malicious websites), I want to disable it.

I'm aware there's a lot of hidden configuration options, but I can't even find the name of what this dialog is called. Every search I have for it yields unrelated results. "Open with" is the only idea I have now, so maybe I should start searching for what the integration or protocol is called within Windows. Maybe that'll put me on the right track.

So, can I disable OR 'configure the confirmation dialog, either altogether OR the delay?

I want to disable caching because it seems to cause some webpages and plugins to malfunction, not updating until a manual refresh occurs. The usual method of editing…

browser.cache.disk.enable

browser.cache.memory.enable

browser.cache.check_doc_frequency

…does not work.

Toggle Cache plugin had no effect and threw a “cannot edit data on this page” error.

Please, help.

OS: Linux Mint 22.1 Xia base: Ubuntu 24.04 noble Firefox: mint-001 -. 1.0 / 137.0.2 (64-bit)

When starting Firefox with a completely new generated profile, I still get following errors in the Browser console tool:

For example (see attachment): services.settings: UnknownError: IndexedDB: main/moz-essential-domain-fallbacks getLastModified() IndexedDB: The operation failed for reasons unrelated to the database itself and not covered by any other error code. Module: RemoteSettingsClient.sys.mjs:555

At this time using Firefox, I haven't configured a Firefox sync-account, to sync settings with the central stored profile on Firefox servers.

Solution: May it is helpful, that if a sync-account isn't configured by a user, these function calls should be suppressed by Firefox, in order to avoid these exception/error messages in Browser console. These error message are just irritating messages, as long as a sync-account isn't configured and activly used.

duplicate of /questions/1509077 thread

Hi. There is a new feature of Firefox that bothers me. It is when I drag tabs around the top, they try to group when I don't want them to. So I go to about:config and find the "browser.tabs.groups.enabled" key and set it to false. But when I restart Firefox, the change reverts. How do I fix this so the change stays?

I've already tried going to Menu->Help->More troubleshooting information->Profile Folder->Open folder, but there is no "user.js" file there. Do I have to do a Firefox reset to fix this? I hope not...

Note that I'm pretty sure that other settings that I change do not revert when I restart Firefox. Right now, it seems to be just this one about:config setting, unless the new version of Firefox reverts all manually changed about:config settings upon restart.

Thanx in advance for any help.

Is there a way to fully disable HDR support in the latest Firefox (138.0.1)? I use it on Linux/Gnome (wayland) where even though HDR support is disabled system-wide (gdctl confirms that) as well as on the monitor, Firefox insists on displaying YouTube videos in HDR resulting in washed out colors.

Looking into the issue I found that disabling the config flag layout.css.video-dynamic-range.allows-high seems to disable HDR but I'm not sure if this is the appropriate way or if there is another switch I currently don't know.

Any help is welcome!

Hello. I wanted to disable this tab group thing that happens when you move tabs around and accidentally hover over another tab with it. So I went to the about:config and toggled browser.tabs.groups.enabled

However, as soon as I restart the browser it resets to true. It doesn't stay false. Does anyone know why?

Thanks.

I have tabs that I can see using resources in the about:processes view but the value in the name field is something like "Firefox (8748)" or "https://fooSite.com". If I have a lot of tabs open, which I always do, it's not clear which one is causing the issue. It would be great if there was a way to show the url that is loaded so that one can quickly choose to stop it, reload it, or close it. Yes, the X action sort of let's you do that but you still don't know exactly which tab you are xing and it's only a kill switch for the tab in the end; there's no choice to resolve the issue by just reloading the page in the event of some video element that is consuming gpu for some reason. It might be a tab that I want to keep around. Making a little more meta data available so that a user can easily track down the specific tab would be great. Imagine I have 70 windows open... Yes, probably a corner case but it's the way I roll.

hello, how to display only the preferences that I have personally modified, without those that an external program has modified: there are too many of them, and this button loses much of its usefulness.

I tried to do this: [quote]Locate and delete the file prefs.js (or rename it, for example, to prefs.jsOLD, to keep the old file as a backup). If you find more than one, a prefs.js.moztmp file or a user.js file,

delete (or rename) these as well. (/quote]

but it doesn't work because there are still “modified preferences” coming from who knows where.

I've carried forward settings from long ago in my profile and I'm trying to figure out what my old settings are that control the scaling of the display. On older displays, I had made a point of using the native resolution for images to avoid blurring, and then changed font sizes to fit. In about:config I've found:

layout.css.devPixelsPerPx=1
layout.css.dpi=144

but copying those to a new profile gives me a tiny display on my higher-res screen. Changing layout.css.devPixelsPerPx works as expected, but layout.css.dpi seems to be a red herring--changing it has no effect in old or new profile. I vaguely remember replacing it with something else after a design change, but I'm not finding it either in about:config or in my userContent.css. It must be something that applies to the page content and not the UI, because my old settings don't affect the menu text and I had to adjust that size in userChrome.css.

(I'm trying to figure this out to diagnose a problem with a web site at work, which doesn't compute the window size correctly with my settings and refuses to display a menu sidebar at my usual window width.)

Please for the love of God, get rid of the asinine Show All when opening about:config. It was a stupid unnecessary change (IF IT AIN'T BROKE DON'T FIX IT) and your users have been bitching about it since it was implemented.

Hello We have used about:config / app.update.url to change an internal webserver http://<internalserver/firefox This webserver is an IIS server with the latest Firefox EXE (<strong>Firefox_Setup_138.0.exe) on it. It has directory browsing enable and we have confirmed we can see and download the file OK. However, when we perform Help / About, you see Firefox Checking for updates... but then says Failed to check for updates. What are we doing wrong? Where can I check for errors? Thanks

I had to restart firefox but when i did it reset all my settings. I tried to increase the zoom through about:config but it does not work anymore. I've tried both ways below-nothing works/changes. Please help, it is extremely difficult to read my toolbar. This should just be a simple setting, ugggh.

Way 1. To zoom the whole browser. This will change more than the tabs.

   Open about:config

   Search for layout.css.devPixelsPerPx

   Change the value Slightly, such as 1 to 1.1 or more. The larger the value is, the bigger the contents are. Be careful, this may zoom in or out too much to see the viewport.

Way 2. To change the font size only of specific parts. This would be harder but safer.

   Open about:config

   Search for toolkit.legacyUserProfileCustomizations.stylesheets and toggle it to true.

   Go to about:profiles

   Find your profile's Root Directory and click Open Directory.

   In your profile directory, create a folder called chrome

   Open the chrome directory, and create a text file named userChrome.css

   Put the text below into the userChrome.css file

I spent a ton of time perfecting my Firefox, making it look exactly how I wanted… but there’s one huge problem. My entire setup relies on userChrome.js, and I haven’t found a way to make it run permanently without pain.

I’m completely out of energy trying to fix this. But maybe someone here knows a proper workaround?

No js loaders and other hacks worked, so I’m sharing the full code. Maybe you can help me figure out a way to keep it running consistently?

Here’s my code:

function fixTabOrientation() {

   let tabbrowserTabs = document.getElementById("tabbrowser-tabs");
   let arrowscrollbox = document.getElementById("tabbrowser-arrowscrollbox");
   let newTabButton = document.getElementById("tabs-newtab-button");
   let peripheryBox = document.getElementById("tabbrowser-arrowscrollbox-periphery");
   let navBar = document.getElementById("nav-bar-customization-target"); 
   let urlBar = document.getElementById("urlbar-container"); // Адресний рядок

   if (tabbrowserTabs?.getAttribute("orient") !== "horizontal") {
       tabbrowserTabs.setAttribute("orient", "horizontal");
   }

   if (arrowscrollbox?.getAttribute("orient") !== "horizontal") {
       arrowscrollbox.setAttribute("orient", "horizontal");
   }

   if (navBar && urlBar && !urlBar.nextSibling?.isSameNode(tabbrowserTabs)) {
       navBar.insertBefore(tabbrowserTabs, urlBar.nextSibling);
   }

   if (newTabButton) {
       newTabButton.style.position = "absolute";
       newTabButton.style.right = "10px"; 
       newTabButton.style.top = "50%"; 
       newTabButton.style.transform = "translateY(-50%)"; 

       if (peripheryBox && !peripheryBox.contains(newTabButton)) {
           peripheryBox.appendChild(newTabButton);
       }

       newTabButton.style.display = "block";  
       newTabButton.style.width = "32px";
       newTabButton.style.height = "32px";
   } else {
       console.log("New Tab");
   }

}

fixTabOrientation(); setInterval(fixTabOrientation, 1000);

Any work solutions would be massively appreciated—I’m honestly exhausted fighting this.

Hi,

I've been trying to solve this issue for the past several months with no avail. I tried configuring some settings via about:config with:

gfx.webrender.compositor - false widget.windows.window_occlusion_tracking.enabled - false

I also unchecked both "Use hardware acceleration when available" and the "use recommended performance setting".

Essentially, I want to be able to watch movies/videos on sites like Netflix and Hulu. Right now only a black screen shows with the audio playing or the screen is frozen in one scene and the audio continues playing.

Does anyone know what else I can do to solve this problem?

In recent Firefox versions, the behavior of window.open() has changed. When opening a new window with an empty URL (), Firefox opens a blank tab (about:blank) and then loads the specified content. However, the about:blank tab may not close automatically as it did in earlier versions.

Hello,

As it stands, there's an... I dunno, 30 second delay before I can even click the "clear data" button to select that I want to delete my cache.

I wish to remove this. I want to clear my cache when I have an issue that MAKES ME HAVE TO CLEAR MY CACHE. I don't want to wait until Firefox thinks I've understood what will happen EVERY. SINGLE. TIME.

What about:config setting do I have to change so Firefox doesn't treat me like a child who hasn't learned patience?

Thank you.

I am just writing to tell you that you can go stick your latest "new and improved" feature (note extreme sarcasm) in AI chatbots where the Sun don't shine.

Someone tell me is Mozilla trying to destroy Firefox?

Are they trying to get people to move to Edge, Chrome, Safari or Opera?

If they are they are going the right way about it!

I am getting sick to the back teeth of Mozilla forcing their crap down our throats.

I have lost count the number of times I have had to go into about:config to turn off the latest crap FX has forced down our throats over the years.

None of us asked for AI Chatbots which is one of the worst ideas ever invented.

I already had to delete Microsoft CoPilot from my PC last September now I had to do it with FX.

Everybody do this and it works:

Goto address bar and type in about:config, goto the search bar and type chat and where it says browser.ml.chat.enabled change from true to false and you will be rid of those garbage chatbots.

I have done that for every forced you you feature FX has added over the years like Pockets and Screengrab and all the other garbage they have added over the years.