diff --git a/interfacer/Gopkg.lock b/interfacer/Gopkg.lock
index c40bde5..c3a09a6 100644
--- a/interfacer/Gopkg.lock
+++ b/interfacer/Gopkg.lock
@@ -11,7 +11,7 @@
   branch = "master"
   name = "github.com/gdamore/tcell"
   packages = [".","terminfo"]
-  revision = "2548ddfbd80a92e96bdde663cdb77b56d65e7dd9"
+  revision = "b3cebc399d6f98536af845ed8a5144ab586f6759"
 
 [[projects]]
   name = "github.com/go-errors/errors"
@@ -26,10 +26,10 @@
   version = "v1.2.0"
 
 [[projects]]
-  branch = "master"
   name = "github.com/lucasb-eyer/go-colorful"
   packages = ["."]
-  revision = "231272389856c976b7500c4fffcc52ddf06ff4eb"
+  revision = "345fbb3dbcdb252d9985ee899a84963c0fa24c82"
+  version = "v1.0"
 
 [[projects]]
   name = "github.com/mattn/go-runewidth"
@@ -40,14 +40,14 @@
 [[projects]]
   name = "github.com/onsi/ginkgo"
   packages = [".","config","internal/codelocation","internal/containernode","internal/failer","internal/leafnodes","internal/remote","internal/spec","internal/spec_iterator","internal/specrunner","internal/suite","internal/testingtproxy","internal/writer","reporters","reporters/stenographer","reporters/stenographer/support/go-colorable","reporters/stenographer/support/go-isatty","types"]
-  revision = "9eda700730cba42af70d53180f9dcce9266bc2bc"
-  version = "v1.4.0"
+  revision = "fa5fabab2a1bfbd924faf4c067d07ae414e2aedf"
+  version = "v1.5.0"
 
 [[projects]]
   name = "github.com/onsi/gomega"
   packages = [".","format","internal/assertion","internal/asyncassertion","internal/oraclematcher","internal/testingtsupport","matchers","matchers/support/goraph/bipartitegraph","matchers/support/goraph/edge","matchers/support/goraph/node","matchers/support/goraph/util","types"]
-  revision = "003f63b7f4cff3fc95357005358af2de0f5fe152"
-  version = "v1.3.0"
+  revision = "62bff4df71bdbc266561a0caee19f0594b17c240"
+  version = "v1.4.0"
 
 [[projects]]
   branch = "master"
@@ -59,13 +59,13 @@
   branch = "master"
   name = "golang.org/x/net"
   packages = ["html","html/atom","html/charset"]
-  revision = "b3c676e531a6dc479fa1b35ac961c13f5e2b4d2e"
+  revision = "1e491301e022f8f977054da4c2d852decd59571f"
 
 [[projects]]
   branch = "master"
   name = "golang.org/x/sys"
   packages = ["unix"]
-  revision = "1d206c9fa8975fb4cf00df1dc8bf3283dc24ba0e"
+  revision = "9527bec2660bd847c050fda93a0f0c6dee0800bb"
 
 [[projects]]
   name = "golang.org/x/text"
diff --git a/interfacer/src/browsh/browsh.go b/interfacer/src/browsh/browsh.go
index ad3c5e6..76de30f 100644
--- a/interfacer/src/browsh/browsh.go
+++ b/interfacer/src/browsh/browsh.go
@@ -8,6 +8,7 @@ import (
 	"io/ioutil"
 	"os"
 	"os/exec"
+	"runtime"
 	"path/filepath"
 	"strings"
 	"unicode"
@@ -87,8 +88,10 @@ func Shutdown(err error) {
 		exitCode = 1
 		println(err.Error())
 	}
-	out := err.(*errors.Error).ErrorStack()
-	Log(fmt.Sprintf(out))
+	if *isDebug {
+		out := err.(*errors.Error).ErrorStack()
+		Log(fmt.Sprintf(out))
+	}
 	os.Exit(exitCode)
 }
 
@@ -133,14 +136,16 @@ func stripWhitespace(str string) string {
 	}, str)
 }
 
-// Shell ... Nice and easy shell commands
+// Shell provides nice and easy shell commands
 func Shell(command string) string {
 	parts := strings.Fields(command)
 	head := parts[0]
 	parts = parts[1:len(parts)]
-	out, err := exec.Command(head, parts...).Output()
+	out, err := exec.Command(head, parts...).CombinedOutput()
 	if err != nil {
-		return "firefox not found"
+		fmt.Printf(
+			"Browsh tried to run `%s` but failed with: %s", command, string(out))
+		Shutdown(err)
 	}
 	return stripWhitespace(string(out))
 }
@@ -176,7 +181,11 @@ func toInt32(char string) int32 {
 func ttyEntry() {
 	// Hack to force true colours
 	// Follow: https://github.com/gdamore/tcell/pull/183
-	os.Setenv("TERM", "xterm-truecolor")
+	if runtime.GOOS != "windows" {
+		// On windows this generates a "character set not supported" error. The error comes
+		// from tcell.
+		os.Setenv("TERM", "xterm-truecolor")
+	}
 	realScreen, err := tcell.NewScreen()
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "%v\n", err)
diff --git a/interfacer/src/browsh/firefox.go b/interfacer/src/browsh/firefox.go
index 9cfbc16..24f4d50 100644
--- a/interfacer/src/browsh/firefox.go
+++ b/interfacer/src/browsh/firefox.go
@@ -8,6 +8,7 @@ import (
 	"net"
 	"os"
 	"os/exec"
+	"runtime"
 	"strings"
 	"time"
 
@@ -52,10 +53,7 @@ var (
 
 func startHeadlessFirefox() {
 	Log("Starting Firefox in headless mode")
-	firefoxPath := Shell("which " + *firefoxBinary)
-	if _, err := os.Stat(firefoxPath); os.IsNotExist(err) {
-		Shutdown(errors.New("Firefox command not found: " + *firefoxBinary))
-	}
+	ensureFirefoxBinary()
 	args := []string{"--marionette"}
 	if !*isFFGui {
 		args = append(args, "--headless")
@@ -83,6 +81,22 @@ func startHeadlessFirefox() {
 	}
 }
 
+func ensureFirefoxBinary() {
+	if *firefoxBinary == "firefox" {
+		switch runtime.GOOS {
+		case "windows":
+			*firefoxBinary = `c:\Program Files (x86)\Mozilla Firefox\firefox.exe`
+		case "darwin":
+			*firefoxBinary = "/Applications/Firefox.app/Contents/MacOS/firefox"
+		default:
+			*firefoxBinary = Shell("which firefox")
+		}
+	}
+	if _, err := os.Stat(*firefoxBinary); os.IsNotExist(err) {
+		Shutdown(errors.New("Firefox binary not found: " + *firefoxBinary))
+	}
+}
+
 // Start Firefox via the `web-ext` CLI tool. This is for development and testing,
 // because I haven't been able to recreate the way `web-ext` injects an unsigned
 // extension.
@@ -96,7 +110,7 @@ func startWERFirefox() {
 		"--no-reload",
 		"--url=https://www.google.com",
 	}
-	firefoxProcess := exec.Command(rootDir+"/webext/node_modules/.bin/web-ext", args...)
+	firefoxProcess := exec.Command(rootDir + "/webext/node_modules/.bin/web-ext", args...)
 	firefoxProcess.Dir = rootDir + "/webext/dist/"
 	defer firefoxProcess.Process.Kill()
 	stdout, err := firefoxProcess.StdoutPipe()
diff --git a/webext/manifest.json b/webext/manifest.json
index 51c16ec..0bc1c95 100644
--- a/webext/manifest.json
+++ b/webext/manifest.json
@@ -1,7 +1,7 @@
 {
   "manifest_version": 2,
   "name": "Browsh",
-  "version": "0.2.14",
+  "version": "1.0.0",
 
   "description": "Renders the browser as realtime, interactive, TTY-compatible text",