Chromium Or Chrome For Mac

| 21-04-2021
[RAND-1-100] Comments



Mac

There are instructions for other platforms linked from the get the code page.

Instructions for Google Employees

Chromium is a free, open-source and widely used Internet browser project that numerous web browsers use as a base platform for providing their users with a modern and fast multi-platform Internet browsing interface. Some of the most popular web browsers that use the Chromium. Microsoft’s new Chromium-based Edge web browser has been available on Windows for a few weeks, but unfortunately for Mac users, there isn’t a way to get the new Edge browser on their OS of.

Are you a Google employee? See go/building-chrome instead.

System requirements

  • A 64-bit Mac running 10.14+.

  • Xcode 11.2+

  • The OS X 10.15.1 SDK. Run

    to check whether you have it. Building with a newer SDK works too, but the releases currently use Xcode 11.2.1.

Install depot_tools

Clone the depot_tools repository:

Add depot_tools to the end of your PATH (you will probably want to put this in your ~/.bash_profile or ~/.zshrc). Assuming you cloned depot_tools to /path/to/depot_tools (note: you must use the absolute path or Python will not be able to find infra tools):

Get the code

Ensure that unicode filenames aren't mangled by HFS:

Create a chromium directory for the checkout and change to it (you can call this whatever you like and put it wherever you like, as long as the full path has no spaces):

Run the fetch tool from depot_tools to check out the code and its dependencies.

If you don't need the full repo history, you can save time by using fetch --no-history chromium. You can call git fetch --unshallow to retrieve the full history later.

Expect the command to take 30 minutes on even a fast connection, and many hours on slower ones.

When fetch completes, it will have created a hidden .gclient file and a directory called src in the working directory. The remaining instructions assume you have switched to the src directory:

Optional: You can also install API keys if you want your build to talk to some Google services, but this is not necessary for most development and testing purposes.

Setting up the build

Chromium uses Ninja as its main build tool along with a tool called GN to generate .ninja files. You can create any number of build directories with different configurations. To create a build directory:

  • You only have to run this once for each new build directory, Ninja will update the build files as needed.
  • You can replace Default with another name, but it should be a subdirectory of out.
  • For other build arguments, including release settings, see GN build configuration. The default will be a debug component build matching the current host operating system and CPU.
  • For more info on GN, run gn help on the command line or read the quick start guide.

Faster builds

Full rebuilds are about the same speed in Debug and Release, but linking is a lot faster in Release builds.

Put

in your args.gn to do a release build.

Put

in your args.gn to build many small dylibs instead of a single large executable. This makes incremental builds much faster, at the cost of producing a binary that opens less quickly. Component builds work in both debug and release.

Put

in your args.gn to disable debug symbols altogether. This makes both full rebuilds and linking faster (at the cost of not getting symbolized backtraces in gdb).

CCache

You might also want to install ccache to speed up the build.

Build Chromium

Build Chromium (the “chrome” target) with Ninja using the command:

(autoninja is a wrapper that automatically provides optimal values for the arguments passed to ninja.)

You can get a list of all of the other build targets from GN by running gn ls out/Default from the command line. To compile one, pass the GN label to Ninja with no preceding “//” (so, for //chrome/test:unit_tests use autoninja -C out/Default chrome/test:unit_tests).

Run Chromium

Once it is built, you can simply run the browser:

Avoiding the “incoming network connections” dialog

Every time you start a new developer build of Chrome you get a system dialog asking “Do you want the application Chromium.app to accept incoming network connections?” - to avoid this, run with this command-line flag:

--disable-features=“MediaRouter”

Running test targets

You can run the tests in the same way. You can also limit which tests are run using the --gtest_filter arg, e.g.:

You can find out more about GoogleTest at its GitHub page.

Debugging

Good debugging tips can be found here. If you would like to debug in a graphical environment, rather than using lldb at the command line, that is possible without building in Xcode (see Debugging in Xcode).

Tips for printing variables from lldb prompt (both in Xcode or in terminal):

  • If uptr is a std::unique_ptr, the address it wraps is accessible as uptr.__ptr_.__value_.
  • To pretty-print base::string16, ensure you have a ~/.lldbinit file and add the following line into it (substitute {SRC} for your actual path to the root of Chromium's sources):

Update your checkout

To update an existing checkout, you can run

The first command updates the primary Chromium source repository and rebases any of your local branches on top of tip-of-tree (aka the Git branch origin/master). If you don't want to use this script, you can also just use git pull or other common Git commands to update the repo.

The second command syncs dependencies to the appropriate versions and re-runs hooks as needed.

Tips, tricks, and troubleshooting

Using Xcode-Ninja Hybrid

While using Xcode is unsupported, GN supports a hybrid approach of using Ninja for building, but Xcode for editing and driving compilation. Xcode is still slow, but it runs fairly well even with indexing enabled. Most people build in the Terminal and write code with a text editor, though.

With hybrid builds, compilation is still handled by Ninja, and can be run from the command line (e.g. autoninja -C out/gn chrome) or by choosing the chrome target in the hybrid project and choosing Build.

To use Xcode-Ninja Hybrid pass --ide=xcode to gn gen:

Open it:

You may run into a problem where http://YES is opened as a new tab every time you launch Chrome. To fix this, open the scheme editor for the Run scheme, choose the Options tab, and uncheck “Allow debugging when using document Versions Browser”. When this option is checked, Xcode adds --NSDocumentRevisionsDebugMode YES to the launch arguments, and the YES gets interpreted as a URL to open.

If you have problems building, join us in #chromium on irc.freenode.net and ask there. Be sure that the waterfall is green and the tree is open before checking out. This will increase your chances of success.

Improving performance of git status

Increase the vnode cache size

git status is used frequently to determine the status of your checkout. Due to the large number of files in Chromium‘s checkout, git status performance can be quite variable. Increasing the system’s vnode cache appears to help. By default, this command:

Outputs kern.maxvnodes: 263168 (263168 is 257 * 1024). To increase this setting:

Higher values may be appropriate if you routinely move between different Chromium checkouts. This setting will reset on reboot, the startup setting can be set in /etc/sysctl.conf:

Or edit the file directly.

Configure git to use an untracked cache

If git --version reports 2.8 or higher, try running

If the output ends with OK, then the following may also improve performance of git status:

If git --version reports 2.6 or higher, but below 2.8, you can instead run

Xcode license agreement

If you're getting the error

Agreeing to the Xcode/iOS license requires admin privileges, please re-run as root via sudo.

the Xcode license hasn't been accepted yet which (contrary to the message) any user can do by running:

Only accepting for all users of the machine requires root:

Are you facing problems while trying to uninstall Chromium from Mac? Well, we have got it covered. Here’s how to remove this app and all its corresponding files from your Mac.

For

After Safari, Chrome is the most popular browser for Mac, and it is based on Chromium open-source web browser project. Because of it being open-source, it is often misused as a platform for malicious web browsers and is categorized as a potentially unwanted program (PUP) and adware.

Hence, if you have gotten the corrupted version installed and want to remove it here are the steps.

The easiest way to do it is to use the Uninstaller module provided by TuneUpMyMac. Using it you can remove Chromium and all of its traces easily. This is an automatic fix and will save you from all the hassle of doing it manually

What is Chromium, and how is it related to Chrome?

Chromium is a legitimate, open-source web browser project and is closely related to Chrome. In simple terms, Chrome is based on Chromium, and whenever Google releases a new version of Chrome, the stable code is taken from the Chromium project.

The difference between Chrome and Chromium is that Chrome is the finished version, while Chromium is the framework on which it is built. It can be easily downloaded from Chromum.org and run on Mac. But if you downloaded it from some other site, you might get the infected version that steals your data.

Signs of corrupt Chromium Version

If you notice the following changes, you might be using a malware-infected version of Chromium:

  • Default home page changes
  • The search engine has changed
  • Irrelevant search results
  • Too many advertisements
  • High CPU usage and slow PC performance
  • Face problem while using installed applications and programs

So, if you have these signs, you have downloaded a corrupted version of Chromium. To remove it, follow the steps below and uninstall it from your Mac.

Things to keep in mind before deleting Chromium

  • All running Chromium processes must be shut down.
  • Quit Chromium
  • To check if any process is running, launch Activity Monitor look for related process and kill the task.

How to uninstall Chromium on your Mac

Manual ways to get rid of Chromium (Legitimate version)

1. Right-click the Chromium icon present in the deck and select Quit.

2. Afterward, close all Chromium processes running in the background. To do so, open Click the menu bar > Go > Utilities.

3. Here look for Activity Monitor and double click to open it.

4. Under Activity Monitor look for all entries corresponding to Chromium. Select them one by one and click Quit Process.

5. In the confirmation dialog box, click Force Quit.

6. Now click Finder -> Go -> Applications Folder -> right Move to Trash/Bin.

7. This will uninstall Chromium from the browser.

However, if you have malware-infected Chromium, you might not be able to uninstall it quickly.

How to Uninstall Infected Chromium from Mac

Removing genuine Chromium wasn’t difficult. It was like 1,2,3. But uninstalling the malicious version won’t be this easy. To uninstall it, you will need to head to other file locations. To do so, follow the steps below:

1. Open Finder

2. Click the menu bar and select Go > Go to Folder

3. Here, paste /Library/LaunchAgents string and press Go

4. This will open the LaunchAgents Here look for the following entry and move it to the Bin:

org.chromium.Chromium.plist

org.chromium.chromoting.plist

5. Afterward again use the Go to Folder and paste: ~/Library/LaunchAgents

6. Again, look for following entries and move them to Bin

chromium.Chromium.plist

org.chromium.chromoting.plist

7. Now in the Go to Folder paste ~/Library/Application Support

8. Look for Chromium entry and Move to Bin.

9. Open Finder > Go > Applications

10. Locate entry with Chromium.app > right-click > Move to Bin. When asked for an admin password, enter it to move ahead.

11. Next click Apple logo > System Preferences

12. Select Account > Login Items. This will show you a list of items that launch at startup. Look for following entries:

Chromium, runChmm, or org.chromium.chromoting.me2me.sh

13. Once detected, click “-” button

14. This will remove Chromium from startup too.

So, these were the manual steps. However, if you are looking for an easy way to do it, you can use the uninstaller module for Mac offered by TuneUpMyMac.

This fantastic module lists down all running processes and helps uninstall all unwanted programs without leaving any traces. This is how it looks:

This will help remove all traces of Chromium.

Alongside to remove it from the startup apps, you can use the Startup Apps module. This module helps remove unwanted programs that load at system startup.

In addition to this, to remove all Chromium traces, you will also have to reset other browsers. To do so, follow the steps below:

Resetting Browsers

Malware changes browser settings and installs malicious extensions. In this case, we are not sure if Chromium did that, therefore, to delete Chromium entirely from Mac, you’ll need to reset each browser. To do so, follow the steps below:

Safari

1. Launch Safari

2. Click Safari from the menu bar > Preferences.

3. Next, click the Advanced tab and check the box next to Show Develop menu in the menu bar.

4. Close this window.

5. You’ll now see a Develop tab in Safari menu, click it and select Empty Caches.

6. Afterward, click History tab > Clear History. You’ll now receive a new pop window here click Clear History.

7. Go back to Safari Preferences and this time, click the Privacy Click Manage Website Data option.

8. You’ll now see a new window with a list of websites that have stored data about our Internet activities. Click Remove All and restart Safari.

Chrome

1. Launch Chrome

2. In the address bar paste chrome://extensions and press Enter

Chrome Chromium For Windows

3. Locate the extensions that you did not install and click Remove.

4. Now paste Chrome://settings in the address bar.

Chromium Or Chrome For Mac Os

5. Scroll down the page until you Reset settings. Confirm by clicking Reset settings

6. Relaunch Chrome.

Firefox

1. Open Firefox and paste about: support in the address bar.

2. This will open Troubleshooting information screen here click Refresh Firefox.

3. Restart the browser

Using the above steps, you will be able to remove any traces of Chromium added to the browser. This will take care of rogue browser extension and all the changes made to browser settings.

In addition to this, to keep your Mac optimized and free up storage space occupied by unwanted files use TuneUpMyMac.

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