A Firefox Fork Focused on Privacy, Security and Freedom. It’s Not for Everyone - LibreWolf /

• about:config
• about:memory - Can I list tabs in firefox by their memory and cpu usages and find the one with most usages?
  • browser.tabs.unloadOnLowMemory
• about:processes - SHIFT+ESC - Task Manager - see whether tabs or extensions are slowing down Firefox

Limiting memory consumption

$ systemd-run --scope --user -p MemoryLimit=6G -p MemorySwapMax=0 firefox %u

# Features

# Tabs

• Tab group
• Split View - 2 pages inside one firefox windows
  • enable in config - and then access through menu
• Tab FS - mounts the browser tabs as a filesystem

• Ctrl-Tab - about:preferences#tabsBrowsing - Interaction > Ctrl+Tab fait défiler vos onglets en les classant selon leur dernière utilisation

• JPEG-XL support - has to be enabled => about:config / jxl / true. Then you can test it here

# Usability

• to remove wrong suggestion from login fields
  • Use the arrow keys to highlight the wrong suggestion in the dropdown.
  • press delete

# Customisation

• disable ‘backspace’ key from navigating back a page - about:config and set browser.backspace_action to 2

• New tab customisation

• My essential Firefox fixes in 2022

How can i make active tab more visible in Firefox Quantum, either by highlight or bold, so it is better identified among the rest of the opened tabs? - mozilla

• A: How to Customize Firefox’s User Interface With userChrome.css

Firefox’s userChrome.css file is a cascading style sheet (CSS) file that Firefox uses. While style sheets are normally applied to web pages, this particular style sheet is applied to Firefox’s user interface. It allows you to change the appearance and layout of everything surrounding the webpage iteslf. You can’t actually add any features; you can only modify what’s already there to change, hide, or move it.

• FirefoxUI css example

# Plugin

• SingleFileZ / HN - Save web pages as self-extracting HTML/ZIP hybrid files
  • Only Chrome requires the installation of SingleFileZ to view saved pages from the filesystem.
• DarkReader - Dark Reader is an open source eye-care browser extension.
• Switch to audible tab - How to locate a noisy tab in Firefox and switch to it instantly

• How to Get Count Number of Current Open Tabs in Firefox / SO - Use an add-on that count tabs

• Save Firefox Tabs Groups
  • Session Sync(Beta) - save session (tab/groups)

# Sync ⮺

# vs Chrome

• The Google cookie that came out of nowhere
• Ghostery, NoScript.. add-ons frequently phone home
• Chrome supports the ping attribute
• Chrome is entrenching third-party cookies that will mislead users - the Related Website Sets feature would reverse some of the privacy benefits of deprecating third-party cookies, and that Google’s justification for reintroducing this privacy harm

# Firefox’s Private Browsing mode ⮺

# Profiles

The real gem of Firefox is Containers. No other browser has something like this. It’s something critically missing from Chrome. - Using extra Firefox profiles to make my life better - Firefox has an extension called Temporary Containers that makes this better: Every new tab is a temporary, ephemeral container. By default I get isolation. I have it configured so if I hold Ctrl and click a link it will open in the same existing container (in a new tab). If I want sessions to “join” I can do that, but I get defense/privacy by default.

• How to Backup and Restore Firefox Profile

Just archive ~/.mozilla

$ tar -jcvf firefox-browser-profile.tar.bz2 .mozilla