• Writing System Selector: The font viewer's preview now offers a writing system dropdown listing only the scripts the loaded font actually covers (detected via the existing canvas coverage probe — no font parsing or extra network). Picking a script fills the preview with a native sample sentence for it. Covers Latin, Greek, Cyrillic, Armenian, Hebrew, Arabic, Devanagari, Thai, Ethiopic, Japanese, Chinese, and Korean. The dropdown is hidden when a single script is detected.
• Download Button: A toolbar button downloads the formatted source you're viewing. The filename follows the server's Content-Disposition, the URL's own filename, or a download.<ext> default. A downloaded HTML page gets a <base> pointing at the original URL so it still renders (styles, images, scripts) when opened locally, and a downloaded CSS file has its relative url(...)/@import references rewritten to absolute so it keeps finding its fonts and images. (Cross-origin webfonts that the server doesn't expose via CORS won't render from a local file — a fully self-contained download is planned for later.)
• Search in Source: Cmd/Ctrl+F (or the toolbar search button) now searches the whole source, not just the part rendered in the viewport. Matches are highlighted and scrolled into view as you type, with next/previous, match-case, whole-word, and regular-expression options. The search bar is localized in all languages.

• Locale-Aware Preview Text: The initial preview text now follows the browser's UI language, derived from its ISO 15924 script (e.g. Japanese, Chinese, or Cyrillic instead of a Latin pangram). This replaces the previous per-locale sample string with a single source of truth shared with the writing-system selector, so the initial text and the "Latin" menu entry no longer diverge.
• Direct Source Links: Links to CSS/JS/JSON/XML files in the source now point at the real file URL (still shown in place by the extension when navigated to) instead of an encoded viewer.html link, so the address bar keeps a clean, copy-able URL. HTML links still open through the viewer to show their source.

• Source Text Encoding: Pages that declare their charset only in an HTML <meta> tag or via a malformed Content-Type header were decoded as UTF-8 and showed replacement characters (�) on accented or non-Latin text (e.g. développeurs). The source is now decoded using the charset from the HTTP header (parsed leniently), falling back to the <meta> declaration, then UTF-8. The page-weight status also reflects the true transferred size.

• Font Viewer: Navigating directly to a font URL (woff2/woff/ttf/otf) now opens a dedicated font viewer with a live preview — editable sample text, adjustable size, bold/italic toggles, and a light/dark background switch — alongside font details (source, format, file size, HTTP status).
• Glyph Grid: A Glyphs view lists the characters the font actually renders. Hover a cell to see its U+XXXX code point, click to copy the character.
• HTTP Status in Status Bar: The status bar now surfaces the response's HTTP status.

• Theme-Aware Link Hover: The link hover color now adapts to the theme type (light or dark).

• Error Response Bodies: The response body is now shown on an HTTP error status when the server returns one.
• Authenticated Requests: Credentials are now included in the fetch request, so pages behind a session cookie load correctly.
• Empty Glyph Grid on Firefox: The glyph-coverage probe canvas is now attached to the document — Firefox only exposes a FontFace-loaded font to a canvas connected to the DOM, so the grid no longer renders empty.
• Firefox Store Name: Shortened the Firefox extension name to comply with AMO's 45-character limit.

Renamed the extension to "Source Code Viewer — HTML/CSS/JS/JSON/XML" and reworded the store summary across all locales to mention the supported languages (HTML, CSS, JavaScript, JSON, XML) and formatting, improving discoverability. No functional changes.

v1.6.0 — New highlighting engine & many more themes

• 🎨 Rebuilt on CodeMirror 6: smoother, more accurate syntax highlighting for HTML, CSS, JavaScript, JSON, and XML.
• 🌈 45 themes to choose from (light & dark) — up from 8.
• 🧩 Code folding: collapse and expand blocks of code.
• ⚡ Themes and language grammars now load on demand, keeping the viewer lean.

ℹ Because the theme system changed, your previously selected theme resets to the default — just pick your favorite again from the toolbar.

• In-Place Auto-Open: Navigating directly to a raw .css/.js/.json/.xml URL now renders the formatted viewer in place — as a full-viewport iframe embedding the viewer page over the original page — instead of redirecting the tab. The address bar keeps the original URL and the browser back button works in a single hop. (Firefox's built-in JSON viewer, when enabled via devtools.jsonview.enabled, still intercepts direct .json navigations before the extension can run.)
• JSON Support: Added JSON syntax highlighting and formatting (with a safe fallback for invalid JSON), plus content-type-aware file detection — the response's real MIME type now takes precedence over the URL extension (handles extensionless URLs such as fonts.googleapis.com/css2?…).
• Type-Aware Link Routing: Links in the viewer are now routed by the target's type — image URLs (.png, .svg, …) open in the browser to render natively, while source files reopen in the code viewer. Clickable URLs now also cover CSS url(…) values and the HTML content attribute (e.g. og:image), the latter only when it holds an absolute URL.

• Theme Stylesheet URL: Theme stylesheets are now resolved via browser.runtime.getURL, so they load correctly regardless of the page hosting the viewer.
• Line-Number Alignment: Line numbers no longer misalign when word wrap is on. The viewer now waits for fonts (document.fonts.ready) and a frame (requestAnimationFrame) before highlighting, and recomputes line-number row heights whenever word wrap is toggled.

Update to version 1.2.0:
- Restricted Domain Handling: Automatic detection of pages where extensions are prohibited (e.g., Chrome Web Store, Firefox Add-ons).
- Native Fallback System: Added a button to switch to the browser's native source viewer on protected pages.
- UX Improvements: Added a manual URL copy option if automatic navigation is blocked.
- Code Refactoring: Centralized detection logic into a shared module.
- Full Localization: Added comprehensive French and English support for error messages and UI elements.