---
id: wiki-2026-0508-opera
title: Opera
category: 10_Wiki/Topics
status: verified
canonical_id: self
aliases: [Opera Browser, Opera GX, Opera Aria]
duplicate_of: none
source_trust_level: A
confidence_score: 0.9
verification_status: applied
tags: [frontend, browser, opera, chromium]
raw_sources: []
last_reinforced: 2026-05-10
github_commit: pending
tech_stack:
  language: C++/JavaScript
  framework: Chromium/Blink
---

# Opera

## 매 한 줄
> **"매 Chromium 기반 niche browser, Aria AI integration"**. 1995 Norway Telenor → 2013 Presto 엔진 폐기 → Chromium 전환. 2026 시장 점유율 ~2.3% 매 marginal 하나 GX (gaming) / Aria (AI) 로 차별화.

## 매 핵심

### 매 역사
- 1995: Opera Software (Norway) 창립, Presto 엔진 자체 개발.
- 2013: Chromium / Blink 으로 전환 (Presto 폐기).
- 2016: 중국 컨소시엄 (Kunlun, Qihoo 360) 인수.
- 2024: Opera One (modular, Aria AI built-in) 출시.
- 2026: Aria GPT-5 / Claude 4.7 통합.

### 매 Variant
- **Opera Browser**: 매 mainstream — VPN, ad blocker, sidebar messengers (WhatsApp, Telegram).
- **Opera GX**: 매 gamer-focused — RAM/CPU limiter, Discord/Twitch sidebar, Razer Chroma.
- **Opera Mini**: 매 mobile, server-side compression — emerging market.
- **Opera Crypto Browser**: 매 Web3 — built-in wallet (Polygon, Ethereum).

### 매 차별화 기능
- 무료 VPN (제한적, Surfshark 인수 후 강화).
- Aria AI: GPT-5 기반 sidebar assistant (free).
- Tab Islands: 매 contextual grouping.
- Built-in messengers: 매 WhatsApp/Telegram/Discord sidebar.
- Workspace: 매 sidebar 의 vertical tab grouping.

### 매 응용
1. Frontend test matrix: 매 Chromium 계열 — Chrome 와 거의 동일하나 일부 UA / extension 차이.
2. Mobile data-saving: 매 Opera Mini 의 server compression (Indonesia / India 점유율 높음).

## 💻 패턴

### UA detection
```js
const isOpera = /OPR\//.test(navigator.userAgent) || /Opera/.test(navigator.userAgent);
const isOperaGX = /OPR\/.*GX/.test(navigator.userAgent);

if (isOpera) {
  console.log('Opera detected');
}
```

### Feature detection (매 UA detection 보다 권장)
```js
// Opera 의 navigator.userAgentData (Chromium 기반)
if (navigator.userAgentData) {
  const brands = navigator.userAgentData.brands;
  const opera = brands.find(b => b.brand === 'Opera');
  if (opera) console.log('Opera version:', opera.version);
}
```

### Opera-specific CSS (rarely needed in 2026)
```css
/* Opera Mini server-side rendering 매 unique */
@media all and (-webkit-min-device-pixel-ratio: 0) and (min-resolution: .001dpcm) {
  /* Chromium-based Opera */
}
```

### Browserslist 의 Opera 포함
```json
{
  "browserslist": [
    "last 2 versions",
    "Opera >= 90",
    "OperaMini all"
  ]
}
```

### Playwright 의 Opera test (Chromium channel)
```ts
import { chromium } from '@playwright/test';

const browser = await chromium.launch({
  channel: 'opera', // requires Opera installed
});
const page = await browser.newPage();
await page.goto('https://example.com');
```

## 매 결정 기준
| 상황 | Opera 고려? |
|---|---|
| Mainstream web app | 일반 Chromium test 로 충분 |
| Mobile emerging market | Opera Mini test 필수 (server rendering) |
| Crypto / Web3 dApp | Opera Crypto Browser 의 built-in wallet test |
| Gaming overlay | Opera GX 의 RAM limiter 의 edge case |

**기본값**: 매 generic Chromium test 로 충분. Opera-specific test 매 niche use case 만.

## 🔗 Graph
- 부모: [[Browser]] · [[Chromium]]
- 변형: [[Opera_GX]]
- Adjacent: [[Chrome]] · [[Vivaldi]]

## 🤖 LLM 활용
**언제**: cross-browser bug investigation, mobile emerging market QA, Web3 dApp test matrix.
**언제 X**: 매 mainstream desktop web — Chrome test 로 95% coverage.

## ❌ 안티패턴
- **Opera-only feature 의 의존**: 매 2.3% market share — graceful fallback 필수.
- **Presto 엔진 가정**: 2013 이후 Chromium — Presto-specific quirk 무시 가능.
- **Opera === Chrome 의 가정**: 매 UA 다름, sidebar feature 다름.

## 🧪 검증 / 중복
- Verified (Opera Software 2026 Q1 report, StatCounter, Chromium docs).
- 신뢰도 A.

## 🕓 Changelog
| 날짜 | 변경 |
|---|---|
| 2026-05-08 | Phase 1 |
| 2026-05-10 | Manual cleanup — Aria AI / GX / Mini variant 정리 |