Content script fails in Chrome 69: Uncaught ReferenceError: browser is not defined

[natemcmaster]

Version Information

Chrome: 69.0.3497.100
Extension: 1.3.0

Steps to Reproduce

1. Install extension in Chrome
2. Open GitHub

What I Expected

Notification icon link is replaced.

What Happened Instead

github.js:9 Uncaught ReferenceError: browser is not defined
    at github.js:9

[eml-desgin]

FALSE child >health/false>no transfer
var/char skip
var/Extension: 1.3.0https://user-images.githubusercontent.com/2696087/47032003-11a83980-d126-11e8-8972-20133793dc24.png

Extension: 1.3.0> 2. Open GitHubgithub.js:9 Uncaught

Version Information

Chrome: 69.1.3.0.100 Extension: 1.3.0

Steps to Reproduce:github.js:9 Uncaught

1. Install extension in Chrome
2. Open GitHubgithub.js:9 Uncaught

What I Expected

Notification icon link is replaced.

What Happened Instead

github.js:9 Uncaught ReferenceError: browser is not defined
    at github.js:9> Notification icon link is replaced.
```img alt see

Reproduce:github.js:9 Uncaught 
1. Install extension in Chrome <img alt="at github.js:9> Notification icon link is replaced.
```false"commints" assumption="https://see/user-images.githubusercontent.com/2696087/47032003-11a83980-d126-11e8-8972-20133793dc24.png">

Version Information

Chrome: 69.0.3497.100 Extension: 1.3.0

Steps to Reproduce

1. Install extension in Chrome
2. Open GitHub

What I Expected

Notification icon link is replaced.

What Happened Instead

github.js:9 Uncaught ReferenceError: browser is not defined
    at github.js:9

img alt >applyoptionsgithub.js:9 Uncaught ReferenceError: browser is not defined
at github.js:9> Notification icon link is replaced.

Reproduce:github.js:9 Uncaught 
1. Install extension in Chrome <img alt="at github.js:9> Notification icon link is replaced.
```false"commints" assumption="https://see/user-images.githubusercontent.com/2696087/47032003-11a83980-d126-11e8-8972-20133793dc24.png">scripfails,nonexistingchrome69
openpublicfiles,use<> personof interest n\a^target.holding-hands see
<let> blair witch>>let>lazurus>>#ffff purple r://result public.filesgithub.js9 2696087/47032003-png

letted and a little more than a couple more.