Lusito

Mozilla Workshop Summary.

Some time ago, I've been invited by Mozilla to attend a workshop on the topic of Manifest V3 and the future of the Recommended Extensions Program. Mozilla was paying for the whole trip: Cost of travel, accommodations, food, and even tickets for Mozfest 2019, which was held the two days after. So it was an obvious choice to accept this invitation.

I took the opportunity to collect some thoughts on these topics from different communities:

• Reddit Firefox
• Mozilla Discourse

On October 25th 2019 the workshop took place at Mozillas London office on the day before MozFest and I just

majido

javascript:(function(){
  var meter = `
  <label style="position:fixed; z-index:10000; top: 0; left: 50%; transform: translateX(-50%); background-color: pink; padding: 5px;">
  Main thread jank (0-500ms):  <input id="jankmeter" type="range" min=0 max=500 value=50>
  </label>
  `;

  const d = document.createElement('jank');
  d.innerHTML = meter;
  document.body.appendChild(d);

samuelcolvin

Guides:

• https://stephentanner.com/restoring-grub-for-an-encrypted-lvm.html
• https://askubuntu.com/questions/719409/how-to-reinstall-grub-from-a-liveusb-if-the-partition-is-encrypted-and-there-i
• https://help.ubuntu.com/community/Grub2/Installing

cryptsetup luksOpen /dev/sdb3 home_sdb3
vgchange -ay
lvscan

simonw

How to recover lost Python source code if it's still resident in-memory

I screwed up using git ("git checkout --" on the wrong file) and managed to delete the code I had just written... but it was still running in a process in a docker container. Here's how I got it back, using https://pypi.python.org/pypi/pyrasite/ and https://pypi.python.org/pypi/uncompyle6

Attach a shell to the docker container

Install GDB (needed by pyrasite)

apt-get update && apt-get install gdb

yoavniran

The Ultimate Unit Testing Cheat-sheet

---

• Sinon Chai
• Chai
• Sinon

carols10cents

Ruby to Rust Cheat Sheet

The goal of this is to have an easily-scannable reference for the most common syntax idioms in Ruby and Rust so that programmers most comfortable with Ruby can quickly get through the syntax differences and feel like they could read and write basic Rust programs.

What do you think? Does this meet its goal? If not, why not?

Variables

Ruby:

yunga

_________ _____ _______________       _____
\_   ___ \\    \\___________   \____ / ____\     ~/.bash/cliref.md
/    \  \/|    | |   ||       _/ __ \  __\    copy/paste from whatisdb
\     \___|__  |_|_  ||    |   \  __/|_ |   http://pastebin.com/yGmGiDQX
 \________  /_____ \_||____|_  /____  /_|     [email protected]
 20160515 \/ 1527 \/         \/     \/

---

alias CLIRef.txt='curl -s "http://pastebin.com/raw/yGmGiDQX" | less -i'

Noitidart

Cu.import('resource://gre/modules/AddonManager.jsm');
AddonManager.getAddonByID('Profilist@jetpack', function(addon) {
  console.info('addon:', addon);
  console.info('addon.applyBackgroundUpdates:', addon.applyBackgroundUpdates);
  addon.applyBackgroundUpdates = 0; //off
  //addon.applyBackgroundUpdates = 1; //default
  //addon.applyBackgroundUpdates = 2; //on
});

brenopolanski

via: http://www.webupd8.org/2011/05/install-firefox-nightly-from-ubuntu-ppa.html

Add the Mozilla Daily PPA (available for Ubuntu 11.04, 10.10 and 10.04) and install Firefox Nightly using the commands below:

$ [sudo] add-apt-repository ppa:ubuntu-mozilla-daily/ppa
$ [sudo] apt-get update
$ [sudo] apt-get install firefox-trunk

Since this is a daily builds PPA, it's nowhere near stable so use it at your own risk!

ozten

macro $if {
    rule {
        ($x...)
    } => {
        if (relCar($x...))
    }
}

macro $while {
    rule {