My previous guide for Firefox involved the use of Task Scheduler. Today I’m offering a recommended and excellent alternative for installing the latest Firefox version via Portainer. Firefox Browser, also known as Mozilla Firefox or simply Firefox, is a free and open-source web browser developed by Mozilla. Firefox uses the Gecko layout engine to render web pages, which implements current and anticipated web standards. Firefox is more than a browser. It’s a whole family of products designed to keep you safer and smarter online. In this step by step guide I will show you how to install Firefox on your Synology NAS using Docker & Portainer.

💡Note: This guide works perfectly with the latest Firefox v134.0.2 release.

• STEP 1

Please Support My work by Making a Donation.

• STEP 2

Install Portainer using my step by step guide. If you already have Portainer installed on your Synology NAS, skip this STEP. Attention: Make sure you have installed the latest Portainer version.

• STEP 3

Go to File Station and open the docker folder. Inside the docker folder, create one new folder and name it firefox. Follow the instructions in the image below.
Note: Be careful to enter only lowercase, not uppercase letters.

• STEP 4

Log into Portainer using your username and password. On the left sidebar in Portainer, click on Stacks then + Add stack. Follow the instructions in the image below.

• STEP 5

In the Name field type in firefox. Follow the instructions in the image below.

Note: Copy Paste the code below in the Portainer Stacks Web editor.

version: "3.9"
services:
  firefox:
    image: ghcr.io/linuxserver/firefox:latest
    container_name: Firefox
    hostname: firefox
    mem_limit: 3g
    shm_size: 5g
    cpu_shares: 1024
    security_opt:
      - no-new-privileges:true
      - seccomp:unconfined
    healthcheck:
      test: wget --no-verbose --tries=1 --spider http://marius:mariushosting@localhost:3000
    ports:
      - 5812:3000
    volumes:
      - /volume1/docker/firefox:/config:rw
    environment:
      TZ: Europe/Bucharest
      PUID: 1026
      PGID: 100
      TITLE: Firefox
      CUSTOM_USER: marius
      PASSWORD: mariushosting
    restart: on-failure:5

Note: Before you paste the code above in the Web editor area below, change the value for TZ (Select your current Time Zone from this list).
Note: Before you paste the code above in the Web editor area below, change the value numbers for PUID and PGID with your own values. (Follow my step by step guide on how to do this.)
Note: Before you paste the code above in the Web editor area below, change the value for CUSTOM_USER. Type in your own username. marius is an example for a username. PS: The username you choose should also be inserted in the healthcheck area above.
Note: Before you paste the code above in the Web editor area below, change the value for PASSWORD. Type in your own password. mariushosting is an example for a password. PS: The password you choose should also be inserted in the healthcheck area above. ⚠️Warning: Do NOT use passwords with special characters.

• STEP 6

Scroll down on the page until you see a button named Deploy the stack. Click on it. Follow the instructions in the image below. The installation process can take up to a few minutes. It will depend on your Internet speed connection.

• STEP 7

If everything goes right, you will see the following message at the top right of your screen: “Success Stack successfully deployed“.

• STEP 8

🟢Please Support My work by Making a Donation. Almost 99,9% of the people that install something using my guides forget to support my work, or just ignore STEP 1. I’ve been very honest about this aspect of my work since the beginning: I don’t run any ADS, I don’t require subscriptions, paid or otherwise, I don’t collect IPs, emails, and I don’t have any referral links from Amazon or other merchants. I also don’t have any POP-UPs or COOKIES. I have repeatedly been told over the years how much I have contributed to the community. It’s something I love doing and have been honest about my passion since the beginning. But I also Need The Community to Support me Back to be able to continue doing this work.

• STEP 9

The installation process can take up to a few seconds/minutes. It will depend on your Internet speed connection. Now open your browser and type in http://Synology-ip-address:5812 If everything goes right, you will see the Firefox Login page. Type in your own CUSTOM_USER and PASSWORD that you have previously created at STEP 5 then click Sign In. Follow the instructions in the image below.

• STEP 10

Search for something!

Enjoy Firefox!

🆘TROUBLESHOOTING

If you encounter issues by using this container, make sure to check out the Common Docker issues article.

Note: If you want to run the Firefox container over HTTPS, check How to Run Docker Containers Over HTTPS. In order to make Firefox work via HTTPS, it’s mandatory to activate WebSocket.

Note: Can I run Docker on my Synology NAS? See the supported models.
Note: How to Back Up Docker Containers on your Synology NAS.
Note: Find out how to update Firefox container with the latest image.
Note: How to Free Disk Space on Your NAS if You Run Docker.
Note: How to Schedule Start & Stop For Docker Containers.
Note: How to Activate Email Notifications.
Note: How to Add Access Control Profile on Your NAS.
Note: How to Change Docker Containers Restart Policy.
Note: How to Use Docker Containers With VPN.
Note: Convert Docker Run Into Docker Compose.
Note: How to Clean Docker.
Note: How to Clean Docker Automatically.
Note: Best Practices When Using Docker and DDNS.
Note: Some Docker Containers Need WebSocket.
Note: Find out the Best NAS Models For Docker.
Note: Activate Gmail SMTP For Docker Containers.

This post was updated on Friday / January 24th, 2025 at 12:09 PM