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I'm not sure if that's a bug in Firefox, but right now Firefox cannot calculate the width of a flex item properly when it has flex-direction: column and flex-wrap: wrap with a max-height set. I mean ...
Roman's user avatar
  • 55
0 votes
2 answers
99 views

I am running Ubuntu 22.04, with Firefox 148, and Selenium, with the geckodriver version 36.0. I have written a small HTML file and a Python script to highlight the issue. The HTML is as follows: <...
TTM's user avatar
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1 answer
104 views

I have a pretty complicated trig function that I need to calculate dynamically. I'm trying to do it in CSS, but it requires a quotient of a value in CQW units with a value in CQH units, in a <div&...
Adam Smith's user avatar
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1 vote
1 answer
136 views

I'm building a web-based address book module for a larger app where users will frequently create/edit contacts. Mozilla Firefox aggressively prompts "Save Address?" or "Update contact?&...
Robert Giordano's user avatar
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1 vote
2 answers
150 views

I’m sending a WebRTC H264 stream from a GStreamer webrtcbin pipeline. It works in Chromium/Edge and Safari (video renders, frames/bytes received). In Firefox, the connection succeeds, and a video ...
Muhammad Haziq's user avatar
  • 21
1 vote
1 answer
120 views

I'm writing a firefox (v.147) extension and I'm able to open a side bar. How do I update/dynamically write messages (or add elements) from the extension onto the side bar?
BoCode's user avatar
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0 answers
118 views

On my website (simple php, html, css, js) I'm using scroll-based animations through js using animation-timeline, which are not supported on Firefox. Google team released scroll-timeline.js (polyfill), ...
maeros's user avatar
  • 109
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0 answers
81 views

So I have a video feed on my Angular site, except it's not a real video feed and is instead just a static image that refreshes every second. Note that this is intended as the source of the feed doesn'...
Deoxys_0's user avatar
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0 answers
310 views

My site has video hosted on it playing using the HTML5 video element, but when streaming these videos in Firefox, after about 2 minutes the playback stops with an NS_ERROR_NET_PARTIAL_TRANSFER error ...
David Kelly's user avatar
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1 answer
126 views

I want to create an application where you can use drag and drop to transfer some short string data from one browser window to another (where either window can be a popup window). Code in the example ...
Leo Simunovic's user avatar
  • 10
-1 votes
1 answer
51 views

I have following table layout: Table layout (in Microsoft Edge) The center table cell is horizontally scrollable and fills the remaining space in width. <table border="1" width="200"> <tr&...
Stefan Fandler's user avatar
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47 views

I login to Udemy.com using Gmail, in Firefox. The Firefox browser doesn't remember the Gmail credentials and prompts for login everyday. In the Firefox Settings > Cookies & Site Data, I have ...
sukesh's user avatar
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1 vote
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178 views

I have a webpage that tries to check the contents of the user's clipboard using navigator.clipboard.readText(). There's a button the page that can import something from the user's clipboard, but only ...
DrRelling's user avatar
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2 answers
365 views

i am trying to run playwright in bun. but when i run bun run test.ts, the output hangs at Launching Chromium.... output: PS D:\\Javascript files\\ss_url_project_copy\\backend\> bun run test.ts ...
Binaya Shrestha's user avatar
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0 answers
49 views

I’m building a floating label input using Tailwind/React. The floating label is an absolutely positioned <span> inside a <label>, and it uses :has(+ input:is(:focus,:not(:placeholder-shown)...
dpkass's user avatar
  • 87
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1 answer
60 views

I'm developing a Linux application that opens SSO authentication URLs in the default browser. On Ubuntu 22.04 and 24.04, when Firefox is the default browser, clicking the SSO link shows a file picker ...
pareshm's user avatar
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1 answer
60 views

I have configured a selenium grid instance in kubernets. Which has a deployment that looks somewhat like this: apiVersion: apps/v1 kind: Deployment metadata: name: selenium-standalone-worker ...
Jeppe Christensen's user avatar
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0 answers
858 views

On a development server hosting a web application that can be accessed via http and https (through self-signed unsecure certifcate that needs the browser to force accept the certificate), Firefox won'...
k0pernikus's user avatar
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1 vote
1 answer
96 views

I'm building a client-side ZIP download feature in TypeScript that streams archives directly to disk. Works perfectly in Chrome, but Firefox's memory usage explodes. Libraries: StreamSaver.js - ...
user1383029's user avatar
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2 votes
2 answers
313 views

I have a simple external SVG file circles.svg that contains related CSS in <style> tag: <svg id="svg" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3....
AntowaKartowa's user avatar
  • 103
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0 answers
54 views

I am trying to get a .NET 9 web server to serve HTTP/3 on Ubuntu 24.04 using Kestrel and MsQuic Despite the server appearing to be configured correctly and listening on all the right ports, Firefox ...
SHIFD's user avatar
  • 105
4 votes
0 answers
166 views

I tried to debug why some element is invisible on Firefox (no issues on Chrome), and found out that it is caused by nested divs with backdrop-filter, but only when parent has filter. If I remove any ...
chojnicki's user avatar
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1 vote
2 answers
145 views

I am building a React + Vite application and have a scenario where a process is in progress. When I click the browser refresh, the default browser confirmation dialog appears. I have written a custom ...
VASANTH K's user avatar
  • 19
0 votes
1 answer
105 views

After updating Mozilla Firefox ESR to version 140.3.1 in my Debian system, every time I start Firefox I keep having the following message: Failed to read the configuration file. Please contact your ...
cacamailg's user avatar
  • 143
0 votes
0 answers
28 views

Firefox WebDriver Fails with "Cyclic object value" Error When Using jasmine-browser-runner with Ext.js 3.2.1 Problem Summary jasmine-browser-runner works perfectly with Chrome but fails with ...
Tanishq Bhadouria's user avatar
  • 1
0 votes
1 answer
86 views

I keep toggling the preference full-screen-api.ignore-widgets via the Configuration Editor (i.e. about:config) and I'm wondering if Firefox would allow an extension to perform that change ...
Niki Herl's user avatar
  • 538
0 votes
0 answers
63 views

I want to enclose the viewport with two SVG images, each covering 50% of the space, leaving no gaps between or around them. Chrome renders this correctly, but Firefox and Safari display small gaps ...
f4him's user avatar
  • 95
1 vote
0 answers
128 views

I have a question about my macro, which opens the Firefox web browser and then copies and pastes it into Excel. I tried the following code: Sub StartII() Dim FinalRowA As Integer FinalRow = Cells(Rows....
Cezary Nowak's user avatar
  • 11
0 votes
1 answer
85 views

I set the following SVG (simple diagonal line) as a background of an element. <svg xmlns='http://www.w3.org/2000/svg' version='1.1' preserveAspectRatio='none' viewBox='0 0 100 100'> <path d=...
helmax's user avatar
  • 69
0 votes
1 answer
149 views

I have tried python requests and was able to load the certificate. But im switching to selenium since the website needs interaction. Can you give me an input on how I implement in python selenium. Im ...
shamyjun22's user avatar
  • 59
0 votes
0 answers
103 views

To implement browser bookmark integration I’m trying to use Firefox native messaging on macOS. Even a trivial shell script that just writes to /tmp/test.log is never executed. Firefox just fails ...
ManuelSchneid3r's user avatar
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2 votes
1 answer
60 views

There is a flex container (display: flex) with align-items: baseline. Inside, there is a text element (label) and input, which renders .invalid-feedback during validation. Before the error (.invalid-...
killbut's user avatar
  • 23
1 vote
1 answer
61 views

I can only recreate this problem in a private browsing window in Firefox; other browsers do not appear to do this. In Firefox, on this page, scroll down until you see the image of the sailboat. ...
garibaldi's user avatar
  • 11
0 votes
2 answers
90 views

I'm having problems in running my python program on Amazon EC2. Everytime I try it gives me the following error: Traceback (most recent call last): File "/home/ubuntu/precobtc.py", line 22,...
André Luís's user avatar
  • 13
0 votes
0 answers
60 views

Firefox add padding around each elements (day, month, year, separator) on a date input : <input type="date" name="date" value="2025-08-25"> On browsers based on webkit we can control that with ...
Mushr00m's user avatar
  • 2,396
0 votes
1 answer
142 views

Is there a way, in Chrome or Firefox, to accurately profile the execution time of a specific function (and the functions it calls). For context, I am writing a custom renderer for an app I am working ...
Mark Lisoway's user avatar
  • 657
2 votes
3 answers
378 views

I am using Firefox 141.0.3. I know there are several ways to have individual CSS properties pierce the Shadow DOM: inheritable CSS Properties CSS Custom Properties use part and myWebComponent:part() ...
Rounin's user avatar
  • 30k
0 votes
1 answer
63 views

So I'm building a site and I deployed it, but for some reason Firefox doesn't want to show one of the divs (Follow Us) for the footer. This only happens on the deployed version, localhost shows "...
Stacklep1's user avatar
  • 433
3 votes
1 answer
259 views

I am making a Firefox add-on and I need it to have the ability to modify the bodies of certain outgoing HTTP requests. The instructions for modifying headers are readily available on Mozilla's own ...
user31184281's user avatar
  • 33
2 votes
1 answer
239 views

How can I customize the header and footer in Firefox's print preview? By default, the page title is displayed at the top left, the URL at the top right, the date at the bottom left, and the page ...
Peter's user avatar
  • 1,402
0 votes
0 answers
48 views

I have page with a treemenu where I select desired input types for below wizard. The wizard has only two tabs - inputs (with dynamically loaded content by selection from above treemenu) and the output ...
lospalos's user avatar
  • 1
0 votes
0 answers
200 views

Is there any way to create a .desktop file that launches a specific Firefox profile and correctly associates the resulting window with the custom launcher button in GNOME? My goal is to have three ...
user1994584's user avatar
  • 93
2 votes
1 answer
123 views

I've modified code from this article to create an animated 40px high line with rounded ends, that shrinks from 120px length down to 0 length and then expands back to 120px length. However I noticed ...
clayRay's user avatar
  • 793
0 votes
1 answer
135 views

Environment: OS: macOS (e.g., Sonoma or Ventura) Browsers tested: Firefox (latest), Chrome (latest) Vue Devtools version: [7.7.7] Vue version: [e.g., Vue 3.4.21] Devtools installation method: Browser ...
Yasin Dehfuli's user avatar
  • 19
1 vote
0 answers
95 views

In a react website, I invoke the following function to open a blob file (PDF or a few image types) which I have fetched from the server after the user clicks a button. function viewDocument(userId, ...
ConfuedProblemSolver's user avatar
  • 705
1 vote
1 answer
133 views

We are using a remote pm tiles service to display a background map in our application. We switched to a new remote service as the old one will be disbanded. In Chrome/Edge/Brave/Opera everything is ...
Candlejack's user avatar
  • 330
0 votes
0 answers
42 views

I’m experiencing an issue on my Windows 11 machine while trying to launch my Azure-based application in Cypress, which should allow me to use my test account. Instead, it keeps defaulting to my SSO ...
Kavya's user avatar
  • 1
1 vote
1 answer
212 views

I'm building an app behind IIS. IIS manages authentication and reverse proxy to my app. in IIS : anonymous Authentication disabled Asp.net impersonation disabled Windows authentication enabled, ...
Fabien's user avatar
  • 181
0 votes
1 answer
54 views

Why is Firefox adding a "margin" to the border-bottom but Chromium-based browsers don't? Any way to fix it? Example: Code (HTML): <!DOCTYPE html> <html lang="en"> &...
Pryte's user avatar
  • 3
1 vote
1 answer
144 views

I've made a layout which works in Chrome but not Firefox. In Firefox each grid item has a lot of internal space. I've tried a lot of the obvious stuff, but I can't see what the cause of the space is ...
alxrb's user avatar
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