Firefox Community Forum

Recently in our workplace, we had several computers that suddenly stopped being able to access several websites, the issue started shortly after pushing a updated Firefox across the floor.

I tracked the issue down to being related to security.tls.version.fallback-limit defaulting to 4, instead of the old 3.

Setting the value to 3 resolves the website accessibility issue.

A.) How can I confirm if this is a recent change or not? Everything I read seems to indicate the default should already be 3, but its very definitively not.

B.) What is the best way to push a pref adjustment change across the floor if the option isn't present in the registry and isn't a GPO option? Is my only option really to make some script that scans every computer's users folder, check every user folder's appdata\mozilla, scan every profile for a pref.js file, and do a string search for a reference line and then do a line addition if a certain string doesn't exist?

I can do this, it just doesn't seem like a good long term fix as I would have to run this script regularly as users come and go....

I am on FF 128.7.0esr (64-bit) under a new profile.

I have gone into about:config and changed all the telemetry entries et al to false to prevent as much datareporting as possible - what I want to do is prevent Firefox (135) from creating the 'datareprting' folder in my profile folder. I delete it every time I go into Firefox, which is an everyday pain because it returns with EVERY new session. I delete it 1. because they don't need it, and 2. more importantly, firefox is NOTICEABLY faster once it is deleted. People have been asking this since like FF 40. Can anyone solve this?

Hello!

I would like to dump Chrome and return to using Firefox. I just would like to know if it's possible somehow to remove about:mozilla page from within a browser (it's important for me). If anyone knows of a way to do it - please let me know.

Thank you!

How do I remove the focus border (outline/box-shadow) around text/input boxes firefox 135? I have it removed from the url search box, but not all pages visited. I have spent days trying to solve this unnecessary thing (for me at least). why is this so hard to change? none of the .css codes you can find on reddit work any more, evrything on the interweb is yearts old, there is nothing on here, and I have tried the about:config trick of: change: browser.display.focus_ring_on_anything to true Change: browser.display.focus_ring_width to 0 with no luck. can someone help? thanks, terry

I asked this question two years ago and the chosen solution no longer works for newer versions of Firefox. (135 in my case) . setting editor.use_div_for_default_newlines in about:config to FALSE does not work.

I am tired of pressing SHIFT <enter> to get <　br　> . Unnessessary <　div　>s make code harder to read.

Any new setting I could use to get
for pressing the enter key?

MOZILLA!

YOUR RIGHT VERTICAL SCROLLBAR IS A NIGHTMARE!

I get vertigo when i go to push or pull the scrollbar: If my mouse is a micron off the THIN scrollbar and i attempt to pull the bar, i get vertigo like using bad VR because my mind says the screen should be moving, but the scrollbar is not moving because i'm a micron off the bar BECAUSE THE BAR IS PAPER THIN.

I see many many users who are having the same issue but few are able to widen the scrollbar.

I go to "about:config"

then i put in the "widget" line that is blasted everywhere to make it wider, but the scrollbar never widens!!

Pleeease please folks, this is slowing down my workflow.

I'm using firefox: 135.0 (64-bit)

Please could someone offer a solution??

Thank you!

Darryl Swann [edited phone# from community support forum] Los Angeles CA

Changing Default Behavior (CSS)

When I'm reading on a computer screen, I hatehatehatedespisehatehatehate "widow and orphan" control. This is especially annoying when reading a long narrative passage that reflows so that a break (often a blank paragraph) falls at the bottom or top of a column/page. There are two relevant CSS properties, each taking a nonzero positive integer as an argument:

    widows: [number of lines]
    orphans: [number of lines]

It appears that Firefox has (like most browsers) established a "default" value of 2 in each of these parameters, which seldom appear in site-specific stylesheets. Do Not Want.

Is there a way to change this default behavior to the equivalent of:

    body {
         widows: 1;
         orphans: 1;}

without either (a) breaking anything or (b) having to redo whatever change every time there's a Firefox update?

I have a requirement where instead of showing the 404 error or 503 error on screen, I want to display a blank screen. I have already tried to set the following configs to false -

security.insecure_connection_text.enabled security.insecure_connection_icon.enabled security.insecure_connection_text.pbmode.enabled browser.ssl_override_behavior security.ssl.errorReporting.automatic security.enterprise_roots.enabled security.tls.version.min

Is there anymore steps to do or any userChrome.css script is required.

PS : I cannot use any extension or addon to do that

Hi,

I have long used the "browser.download.open_pdf_attachments_inline" setting to revert Firefox to the older style of PDF handling. I have recently setup Firefox on a new Windows 11 machine, and this custom preference is no longer working. If I change the somewhat-related "browser.download.start_downloads_in_tmp_dir" setting, then PDFs DO download to the temp folder, and still open in the browser, so I know that at least some custom preferences are working.

I've verified that the prefs.js file for my profile is being updated with the "browser.download.open_pdf_attachments_inline" setting. I've also tried adding it to a user.js file, and that made no difference.

Any thoughts on why this preference is no longer working?

Steps to reproduce- (1) Enable 'accessibility.blockautorefresh' in 'about:config' (This is said to ask for permission before redirecting) (2) Go here (3) End up here without permission

Extensions I'm using- Privacy Badger, uBlock origin, clearURLs and Show/hide passwords

Another question, does enabling this setting also stop internal redirection?

I have already read all the articles that I could find about how to rebind keys in firefox. I understand the concept of the autoconfig file, have created one for normal settings.

But as I understand it I could also rebind keys there with this snippet

``` try {

 let { classes: Cc, interfaces: Ci, manager: Cm  } = Components;
 const Services = globalThis.Services;
 const {SessionStore} = Components.utils.import('resource:///modules/sessionstore/SessionStore.jsm');
 function ConfigJS() { Services.obs.addObserver(this, 'chrome-document-global-created', false); }
 ConfigJS.prototype = {
   observe: function (aSubject) { aSubject.addEventListener('DOMContentLoaded', this, {once: true}); },
   handleEvent: function (aEvent) {
     let document = aEvent.originalTarget; let window = document.defaultView; let location = window.location;
     if (/^(chrome:(?!\/\/(global\/content\/commonDialog|browser\/content\/webext-panels)\.x?html)|about:(?!blank))/i.test(location.href)) {
       if (window.Tabbrowser) {

         // Place your keyboard shortcut changes here
         // ...
         // ...

       }
     }
   }
 };
 if (!Services.appinfo.inSafeMode) { new ConfigJS(); }

} catch(ex) {}; ```

But the missing piece is the instructions to set the binding for :

alt-j : move one char to the left alt-i : move up one line alt-k : move down one line alt-l : move one char to the right

The closest I get to understand this is with this other snippet

``` // remap Ctrl-J to downloads (removing it from focusing the browser bar) let search2 = window.document.getElementById('key_search2') search2.remove(); let openDownloads = window.document.getElementById('key_openDownloads') openDownloads.setAttribute("modifiers", "accel"); openDownloads.setAttribute("key", "J"); ```

But in this case I need to know the values to substitute "key_search2" for the corresponding key bindign "key_charleft","key_previouschar","key_charprev","cmd_charprev"?

Any information on how to accomplish that would be greatly appreciated, thanks.

i dontae to you every fucking month and now on windows 11 "browser.newtabpage.activity-stream.improvesearch.handoffToAwesomebar" has stoped working when i change to false what the fuck am i supposed to do now

Hi all,

I’ve been using Firefox for a while now, but coming from Chrome, I’m finding some aspects of Firefox’s cache management and tab behavior a bit inconvenient, and I wanted to share my thoughts.

The issue:

When I restart Firefox (version 133.0.3-1), it loads webpages from the disk cache, which is fine because I’ve set browser.cache.disk.enable to true and browser.cache.check_doc_frequency to 2, it will always make a request to the server on restarting Firefox with the default value of 3. However, the problem arises when I open new tabs — they also load from the disk cache instead of requesting fresh content from the server.

What I’m looking for:

   A way to have Firefox:

Load webpages from the disk cache when restarting the browser (which I want, and I have set browser.cache.disk.enable to true for this). But always make fresh requests from the server when opening new tabs, no matter what the cache settings are.

In Chrome, this behavior is more intuitive — it loads from the cache after restart but always fetches from the server for new tabs, which I find to be much more reasonable.

I understand that about:config provides settings like browser.sessionstore.restore_on_demand, but adjusting this option makes Firefox fetch content from the server for all tabs, including those opened after a restart. This doesn’t seem like a perfect solution because it takes away the ability to use the disk cache after restarting the browser.

I would really appreciate it if Firefox could offer more granular control over this behavior, so users could get the benefits of both caching and real-time requests based on the type of tab (restart vs. new tab).

Thanks for your attention, and I hope to see some improvements in future updates!

Hello Since few weeks (maybe on firefox 132 already, but surely on firefox 133) I observe issue with my firefox UI. While grabbing and holding tab (to change its position, move it on bar), whole tab bar gets thinner which realigns my whole UI. Issue is probably caused by my custom userchrome.css but I need it in current or similar form. Maybe there is some css specialist who can help me remove unnecessary parts of code?

My css is as follows:

.tab-background{ border-radius: 0px 0px !important; margin-bottom: 0px !important; } .tabbrowser-tab:not([selected=true]):not([multiselected=true]) .tab-background{ background-color: color-mix(in srgb, currentColor 4%, transparent); } menupopup > menu, menupopup > menuitem{ padding-block: 3px !important; min-height: 0px !important; }

root{

--arrowpanel-menuitem-padding: 2px !important; }

Steps to recreate:

1. Open any website
2. Make any css changes. These will be shown in the Changes tab in the dev tools
3. Close dev tools, then re-open. Now those changes won't be shown

Sometimes I need to close dev tools in order to see how the web page would look normally.

Hello,

I have been experiencing this issue for a while, but only just now noticed it. When I hover over a tab, nothing shows up; no preview, no title, no web address, nothing. I have a few extensions, but uninstalled any that would effect tabs at all, with no change. All other extensions I have had since I switched over to Firefox. I have attempted to search for solutions, and have followed what I found. Multiple support questions here have gotten the answer of going into the config to change the following Boolean variables to be true:

   browser.tabs.hoverPreview.enabled 
   browser.tabs.hoverPreview.showThumbnails 

but when I went to do so, they were both already set to true. I disabled and then re-enabled them just to check, but nothing changed. I have a ridiculous amount of tabs open, but that's the only other thing I can think of that would be causing this issue. Just in case, I am in the process of closing as many as I can.

Any advice or assistance would be appreciated.

Thank you.

Hello.

In about:config the keyword.enabled false does not work anymore.

So how on earth do we stop this stupid search option in the url bar. When i open a new tab, i'll get on a firefox tab. In the middle I can search (in the search bar), but after typing 1 letter, the search is moved to be in the address bar. WHY????

How to stop this madness?

Thank you for an answer

Why is there in about:config no reference to documentation of the displayed settings?

e.g. browser.chrome.toolbar_tips.hide_on_keydown

What is it? What is the meaning of the values? What is the default value? Why do we have to guess?

It is probably documented somewhere (I hope). Why is there no reference to it in about:config?

Hi Firefoxians,

I need to ask regardining this security.cert_pinning.enforcement_level. how can i set this value using the windwos server GPO? i could not find this even after copying the firefox.admx file. could someone please guide me how can i acheive it?

I would really appreciate the help!

Regards Sheras