[BUG] ERROR: method 'Target.enable' is not supported Firefox custom build.

Context:

Playwright Version: latest Operating System: Linux Extra: Custom Firefox linux build (works by hand)

Code Snippet

const playwright = require('playwright');

(async () => {
  for (const browserType of ['firefox',]) {
    const browser = await playwright[browserType].launch({
      headless: false,
      dumpio: true,
    });
    const context = await browser.newContext();
    const page = await context.newPage();
    await page.goto('http://whatsmyuseragent.org/');
    await page.screenshot({ path: `example-${browserType}.png` });
    await browser.close();
  }
})();

Describe the bug

My problem arises when using a custom Mozilla build but following playwright scripts and mozilla documentation. Address Sanitizer. File mozconfig by default is

# Combined .mozconfig file for ASan on Linux+Mac
mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/objdir-ff-asan

# Enable ASan specific code and build workarounds
ac_add_options --enable-address-sanitizer

# Add ASan to our compiler flags
export CFLAGS="-fsanitize=address -Dxmalloc=myxmalloc -fPIC"
export CXXFLAGS="-fsanitize=address -Dxmalloc=myxmalloc -fPIC"

# Additionally, we need the ASan flag during linking. Normally, our C/CXXFLAGS would
# be used during linking as well but there is at least one place in our build where
# our CFLAGS are not added during linking.
# Note: The use of this flag causes Clang to automatically link the ASan runtime :)
export LDFLAGS="-fsanitize=address"

# These three are required by ASan
ac_add_options --disable-jemalloc
ac_add_options --disable-crashreporter
ac_add_options --disable-elf-hack

# Keep symbols to symbolize ASan traces later
export MOZ_DEBUG_SYMBOLS=1
ac_add_options --enable-debug-symbols
ac_add_options --disable-install-strip

# Settings for an opt build (preferred)
# The -gline-tables-only ensures that all the necessary debug information for ASan
# is present, but the rest is stripped so the resulting binaries are smaller.
ac_add_options --enable-optimize="-O2 -gline-tables-only"
ac_add_options --disable-debug

# Settings for a debug+opt build
#ac_add_options --enable-optimize
#ac_add_options --enable-debug

# ASan specific options on Linux
ac_add_options --enable-valgrind

Build process as described Contributing Browser Patches

$ ./browser_patches/prepare_checkout.sh firefox checkout
$ ./path/checkout/mach bootstrap // to ensure satisfied dependencies.
$ ./browser_patches/firefox/build.sh 
$ ./path/checkout/mach run // to ensure build works fine
$ ./browser_patches/firefox/archive.sh .. //saved zip and cp it to core path and replace original folder of firefox or defined by 'executablePath' in script.

Commented new build config to disable crash reporter …/local-firefox/linux-1029/firefox/playwright.cfg if not firefox shows a dialog at start “contact administrator…” (it is disabled in mozconfig “ac_add_options --disable-crashreporter” anyway)

//lockPref("toolkit.crashreporter.enabled", false);
..
//Components.classes["@mozilla.org/toolkit/crash-reporter;1"].getService(Components.interfaces.nsICrashReporter).submitReports = false;

Error if not commented in ‘dumpio’:

JavaScript error: playwright.cfg, line 235: TypeError: Components.classes['@mozilla.org/toolkit/crash-reporter;1'] is undefined
Firefox AddressSanitizer build is done, it works fine because I use it for my testsuite manually. But if I use it with the playwright script, opens Firefox and visually does nothing and throw this error :

1583842611731	[e-mail]	WARN	Loading extension '[e-mail]': Reading manifest: Invalid extension permission: networkStatus
1583842612448	[e-mail]	WARN	Loading extension '[e-mail]': Reading manifest: Invalid extension permission: mozillaAddons
1583842612448	[e-mail]	WARN	Loading extension '[e-mail]': Reading manifest: Invalid extension permission: telemetry
1583842612448	[e-mail]	WARN	Loading extension '[e-mail]': Reading manifest: Invalid extension permission: resource://pdf.js/
1583842612449	[e-mail]	WARN	Loading extension '[e-mail]': Reading manifest: Invalid extension permission: about:reader*
[2020-03-10T12:16:53Z ERROR audio_thread_priority::rt_linux] setrlimit64: 1
Juggler listening on ws://127.0.0.1:39135/74fcf71e-37f4-4a0c-b17d-69890b3676e4
(node:21256) UnhandledPromiseRejectionWarning: Error: Protocol error (Target.enable): ERROR: method 'Target.enable' is not supported _dispatch@chrome://juggler/content/protocol/Dispatcher.js:96:15

    at Promise (/home/lupin/node_modules/playwright-core/lib/firefox/ffConnection.js:54:63)
    at new Promise (<anonymous>)
    at FFConnection.send (/home/lupin/node_modules/playwright-core/lib/firefox/ffConnection.js:53:16)
    at Function.connect (/home/lupin/node_modules/playwright-core/lib/firefox/ffBrowser.js:49:26)
    at Firefox.launch (/home/lupin/node_modules/playwright-core/lib/server/firefox.js:54:53)
    at process._tickCallback (internal/process/next_tick.js:68:7)
(node:21256) UnhandledPromiseRejectionWarning: Unhandled promise rejection. This error originated either by throwing inside of an async function without a catch block, or by rejecting a promise which was not handled with .catch(). (rejection id: 1)
(node:21256) [DEP0018] DeprecationWarning: Unhandled promise rejections are deprecated. In the future, promise rejections that are not handled will terminate the Node.js process with a non-zero exit code.

This part t’s not important, same line with default playwright firefox build and works fine with script attached

[2020-03-10T12:16:53Z ERROR audio_thread_priority::rt_linux] setrlimit64: 1 it’s not important, same line with default playwright firefox build and works fine with script attached) Any help to locate and fix this issue? I use Firefox with Address Sanitizer to commit fixes and ensure no memory corruptions are introduced.

[ghost]

I’m on Ubuntu 18.04. Can you try running this?

It has been building for 40 minutes, so I have not replied before. I close it and open it if it doesn’t work when it’s done. Thank you!

[zyscoder]

@lupinhex So here are the things I did:

1. Got a tip-of-tree checkout of playwight: git clone https://github.com/microsoft/playwright
2. change dir into playwright: cd playwright
3. Ran npm install to get all dependencies
4. Ran //browser_patches/prepare_checkout.sh firefox to get a firefox checkout
5. Put the following in //browser_patches/firefox/checkout/.mozconfig

# Combined .mozconfig file for ASan on Linux+Mac
mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/objdir-ff-asan

# Enable ASan specific code and build workarounds
ac_add_options --enable-address-sanitizer

# Add ASan to our compiler flags
export CFLAGS="-fsanitize=address -Dxmalloc=myxmalloc -fPIC"
export CXXFLAGS="-fsanitize=address -Dxmalloc=myxmalloc -fPIC"

# Additionally, we need the ASan flag during linking. Normally, our C/CXXFLAGS would
# be used during linking as well but there is at least one place in our build where
# our CFLAGS are not added during linking.
# Note: The use of this flag causes Clang to automatically link the ASan runtime :)
export LDFLAGS="-fsanitize=address"

# These three are required by ASan
ac_add_options --disable-jemalloc
ac_add_options --disable-crashreporter
ac_add_options --disable-elf-hack

# Keep symbols to symbolize ASan traces later
export MOZ_DEBUG_SYMBOLS=1
ac_add_options --enable-debug-symbols
ac_add_options --disable-install-strip

# Settings for an opt build (preferred)
# The -gline-tables-only ensures that all the necessary debug information for ASan
# is present, but the rest is stripped so the resulting binaries are smaller.
ac_add_options --enable-optimize="-O2 -gline-tables-only"
ac_add_options --disable-debug

# Settings for a debug+opt build
#ac_add_options --enable-optimize
#ac_add_options --enable-debug

# ASan specific options on Linux
ac_add_options --enable-valgrind

1. Ran //browser_patches/firefox/build.sh to compile firefox
2. I did not run the //browser_patches/firefox/archive.sh.
3. I put the following file in the root of playwright checkout:

// NOTICE: requiring playwright from source
const playwright = require('.');

(async () => {
  for (const browserType of ['firefox',]) {
    const browser = await playwright[browserType].launch({
      // NOTICE: using executablePath to run local build
      executablePath: "/home/aslushnikov/prog/playwright/browser_patches/firefox/checkout/obj-x86_64-pc-linux-gnu/dist/bin/firefox",
      headless: false,
      dumpio: true,
    });
    const context = await browser.newContext();
    const page = await context.newPage();
    await page.goto('http://whatsmyuseragent.org/');
    await page.screenshot({ path: `example-${browserType}.png` });
    await browser.close();
  }
})();

Running this script worked fine for me. I didn’t even do anything with crash reporter in preferences.

I’m on Ubuntu 18.04. Can you try running this?

I recently stuck in the same problem too. I think your steps have some mistakes. You put the .mozconfig in the //browser_patches/firefox/checkout/ first, and then run //browser_patches/firefox/build.sh. I noticed that the script //browser_patches/firefox/build.sh would rewrite .mozconfig, causing that your firefox is not built with the original configure (The one with asan). To verify this, you can have a look at the .mozconfig after you run build.sh to build firefox. I modified the build.sh script:

#!/bin/bash
set -e
set +x

RUST_VERSION="1.47.0"
CBINDGEN_VERSION="0.15.0"
# Certain minimal SDK Version is required by firefox
MACOS_SDK_VERSION="10.12"
# XCode version can be determined from https://en.wikipedia.org/wiki/Xcode
XCODE_VERSION_WITH_REQUIRED_SDK_VERSION="8.3.3"

trap "cd $(pwd -P)" EXIT

cd "$(dirname $0)"
SCRIPT_FOLDER="$(pwd -P)"

if [[ ! -z "${FF_CHECKOUT_PATH}" ]]; then
  cd "${FF_CHECKOUT_PATH}"
  echo "WARNING: checkout path from FF_CHECKOUT_PATH env: ${FF_CHECKOUT_PATH}"
else
  cd "checkout"
fi


if [[ "$(uname)" == "Darwin" ]]; then
  # Firefox currently does not build on 10.15 out of the box - it requires SDK for 10.12.
  # Make sure the SDK is out there.
  if ! [[ -d $HOME/SDK-archive/MacOSX${MACOS_SDK_VERSION}.sdk ]]; then
    echo "As of Dec 2020, Firefox does not build on Mac without ${MACOS_SDK_VERSION} SDK."
    echo "Download XCode ${XCODE_VERSION_WITH_REQUIRED_SDK_VERSION} from https://developer.apple.com/download/more/ and"
    echo "extract SDK to $HOME/SDK-archive/MacOSX${MACOS_SDK_VERSION}.sdk"
    echo ""
    echo "More info: https://firefox-source-docs.mozilla.org/setup/macos_build.html"
    exit 1
  else
    echo "-- configuting .mozconfig with ${MACOS_SDK_VERSION} SDK path"
    echo "ac_add_options --with-macos-sdk=$HOME/SDK-archive/MacOSX${MACOS_SDK_VERSION}.sdk/" > .mozconfig
  fi
  echo "-- building on Mac"
elif [[ "$(uname)" == "Linux" ]]; then
  echo "-- building on Linux"
  echo "ac_add_options --disable-av1" > .mozconfig
elif [[ "$(uname)" == MINGW* ]]; then
  DLL_FILE=""
  if [[ $1 == "--win64" ]]; then
    echo "-- building win64 build on MINGW"
    echo "ac_add_options --target=x86_64-pc-mingw32" > .mozconfig
    echo "ac_add_options --host=x86_64-pc-mingw32" >> .mozconfig
    DLL_FILE=$("C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe" -latest -find '**\Redist\MSVC\*\x64\**\vcruntime140.dll')
  else
    echo "-- building win32 build on MINGW"
    DLL_FILE=$("C:\Program Files (x86)\Microsoft Visual Studio\Installer\vswhere.exe" -latest -find '**\Redist\MSVC\*\x86\**\vcruntime140.dll')
  fi
  WIN32_REDIST_DIR=$(dirname "$DLL_FILE")
  if ! [[ -d $WIN32_REDIST_DIR ]]; then
    echo "ERROR: cannot find MS VS C++ redistributable $WIN32_REDIST_DIR"
    exit 1;
  fi
  echo "export WIN32_REDIST_DIR=\"$WIN32_REDIST_DIR\"" >> .mozconfig
else
  echo "ERROR: cannot upload on this platform!" 1>&2
  exit 1;
fi

#OBJ_FOLDER="obj-build-playwright"
OBJ_FOLDER="objdir-ff-asan"
echo "mk_add_options MOZ_OBJDIR=@TOPSRCDIR@/${OBJ_FOLDER}" >> .mozconfig
echo "ac_add_options --enable-address-sanitizer" >> .mozconfig
echo "export CFLAGS=\"-fsanitize=address -Dxmalloc=myxmalloc -fPIC\"" >> .mozconfig
echo "export CXXFLAGS=\"-fsanitize=address -Dxmalloc=myxmalloc -fPIC\"" >> .mozconfig
echo "export LDFLAGS=\"-fsanitize=address\"" >> .mozconfig
echo "ac_add_options --disable-jemalloc" >> .mozconfig
echo "ac_add_options --disable-crashreporter" >> .mozconfig
echo "ac_add_options --disable-elf-hack" >> .mozconfig
echo "export MOZ_DEBUG_SYMBOLS=1" >> .mozconfig
echo "ac_add_options --enable-debug-symbols" >> .mozconfig
echo "ac_add_options --disable-install-strip" >> .mozconfig
echo "ac_add_options --enable-optimize=\"-O2 -gline-tables-only\"" >> .mozconfig
echo "ac_add_options --disable-debug" >> .mozconfig
echo "ac_add_options --enable-valgrind" >> .mozconfig

if ! [[ -f "$HOME/.mozbuild/_virtualenvs/mach/bin/python" ]]; then
  ./mach create-mach-environment
fi

if [[ $1 == "--juggler" ]]; then
  ./mach build faster
else
  # TODO: rustup is not in the PATH on Windows
  if command -v rustup >/dev/null; then
    # We manage Rust version ourselves.
    echo "-- Using rust v${RUST_VERSION}"
    rustup install "${RUST_VERSION}"
    rustup default "${RUST_VERSION}"
  fi

  # TODO: cargo is not in the PATH on Windows
  if command -v cargo >/dev/null; then
    echo "-- Using cbindgen v${CBINDGEN_VERSION}"
    cargo install cbindgen --version "${CBINDGEN_VERSION}"
  fi
  ./mach build
fi

if [[ "$(uname)" == "Darwin" ]]; then
  node "${SCRIPT_FOLDER}"/install-preferences.js $PWD/${OBJ_FOLDER}/dist
else
  node "${SCRIPT_FOLDER}"/install-preferences.js $PWD/${OBJ_FOLDER}/dist/bin
fi

and then run build.sh. After that I run my firefox with //browser_patches/checkout/mach run but error occurs: