In IntelliJ IDEA, navigate to Help -> Find Action. Type Registry and select it. Here, disable ide.browser.jcef.sandbox.enable. That worked for me.

Answer from Oliver on Stack Overflow
🌐
JetBrains
plugins.jetbrains.com › plugin › 21624-codeium-enterprise-updater
Codeium Enterprise Updater - IntelliJ IDEs Plugin | Marketplace
For Codeium Enterprise customers only Other Codeium users should use the standard Codeium extension in the JetBrains Marketplace. Codeium Enterprise Updater Installs...
Discussions

Codeium vs. JetBrains AI Assistant
In my experience, Codeium is more mature than Jetbrains. Suggestions are better, unit tests are more complete, prompt to code is better. Just my experience in C#, Typescript. Jetbrains has a trial period and Codeium has a free basic license. I'd advice to try both and see which suits better. More on reddit.com
🌐 r/Codeium
6
2
March 4, 2024
Codeium vs. JetBrains AI Assstant
I'm happy with Codeium Pro in phpstorm and vs code. It helps me both based on project workspace and general knowledge. In order to get information about project context you can use cmd+enter with your questions. More on reddit.com
🌐 r/Jetbrains
11
4
March 4, 2024
Codeium 1.40.1 Intellij plugin crashes on startup.
Symptom: get the below stack trace when starting up intellij (can repro every time). Then every cascade chat response says "error generating response" I really love the codeium plugin and now incre... More on github.com
🌐 github.com
7
March 12, 2025
🌐
GitHub
github.com › Exafunction › CodeiumJetBrains
GitHub - Exafunction/CodeiumJetBrains: Codeium JetBrains Plugin · GitHub
Currently, Codeium provides autocomplete, chat, and search capabilities in 70+ languages, with lightning fast speeds and state-of-the-art suggestion quality.
Starred by 63 users
Forked by 25 users
Languages   Kotlin 99.8% | Shell 0.2%
🌐
JetBrains
plugins.jetbrains.com › plugin › 20540-codeium-ai-autocomplete-and-chat-for-python-js-java-go--
Windsurf Plugin for Python, JS, Java, Go... - IntelliJ IDEs Plugin | Marketplace
Windsurf Plugin Windsurf is the modern coding superpower, a free code acceleration toolkit built on cutting edge AI technology. Currently, Windsurf Plugin provides...
🌐
Codeium
codeium.com › jetbrains_tutorial
JetBrains IDEs Tutorial | Windsurf Editor and ...
Find the Windsurf Plugin (formerly Codeium) in the VS Code Marketplace and install it.
Find elsewhere
🌐
Codium
codium.ai › install › intellij
Get CodiumAI for IntelliJ
Harness the full potential of Qodo interfaces - In Git, IDE and CLI, powered by Qodo Context Engine.
🌐
Windsurf
windsurf.com › blog › jetbrains-codeium-chat-announcement
Codeium Chat in JetBrains!
General access to the Codeium Chat functionality in all JetBrains IDEs.
🌐
Medium
medium.com › @hyatagama › from-code-to-click-elevating-ui-automation-with-codeium-78ba0d48924e
From Code to Click: Elevating UI Automation with Codeium | by Hiruni Yatagama | Medium
August 9, 2024 - Codeium is an AI-powered coding assistant designed to enhance the efficiency and effectiveness of developers, particularly those working in automation. It integrates seamlessly with popular IDEs like IntelliJ, offering real-time code suggestions, ...
🌐
Windsurf
windsurf.com › download
Download Windsurf Editor and Plugins
Cascade brings autonomous, multi-file coding to IntelliJ IDEA, PyCharm, WebStorm, and more.
🌐
GitHub
github.com › Codium-ai › codiumai-jetbrains-release
GitHub - Codium-ai/codiumai-jetbrains-release · GitHub
Contribute to Codium-ai/codiumai-jetbrains-release development by creating an account on GitHub.
Starred by 69 users
Forked by 8 users
🌐
The Carpentries
carpentries-incubator.github.io › gen-ai-coding
AI-assisted Coding with Codeium: Summary and Setup
December 4, 2024 - Codeium can be also used with other IDEs, such as IntelliJ IDEA, PyCharm, Vim, and WebStorm.
🌐
GitHub
github.com › Exafunction › codeium › issues › 149
Codeium 1.40.1 Intellij plugin crashes on startup. · Issue #149 · Exafunction/codeium
March 12, 2025 - Here's the stack trace, unfortunately intellij crashed when I tried to get the diagnostics. ... Unhandled exception in Dispatchers.IO java.lang.NoClassDefFoundError: Could not initialize class com.codeium.intellij.utilities.Unleash at com.codeium.intellij.language_server.LanguageServerLauncherActivity$runActivity$1$2.invokeSuspend(LanguageServerLauncherActivity.kt:276) at kotlin.coroutines.jvm.internal.BaseContinuationImpl.resumeWith(ContinuationImpl.kt:33) at kotlinx.coroutines.internal.ScopeCoroutine.afterResume(Scopes.kt:29) at kotlinx.coroutines.AbstractCoroutine.resumeWith(AbstractCorouti
Author   elonazoulay
🌐
SourceForge
sourceforge.net › software › product › Codeium › integrations
Codeium Integrations
This lets you develop a wide range of applications including .NET desktop applications, services and libraries, Unity games, Xamarin apps, ASP.NET, and ASP.NET Core web applications. Rider provides 2200+ live code inspections, hundreds of context actions and refactorings brought by ReSharper, and combines them with the IntelliJ platform's solid IDE features.
Rating: 4.5 ​ - ​ 21 votes
🌐
Intelligent Tools
intelligenttools.co › tools › codeium
Codeium - Free AI coding assistant for individuals
5 days ago - Free AI code completion in VS Code, IntelliJ, and 20+ editors. Fast, private code suggestions with context awareness. GitHub Copilot alternative option. Y combinator Funding · Data from: GitHub • Website•Updated: Jan 15, 2026 · Codeium - 25 Prompt Credits/Month Free ·