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The translation is split into: * ``_BASELINE`` - global stealth policy (RFP off, WebRTC leaks blocked, safebrowsing disabled, debugger detach, …) plus Windows-canonical constants that don't depend on the Profile (system colors palette, WebGL extensions whitelist, speech voices, navigator identity). * ``translate_profile_to_prefs`` - overlays the Profile fields plus the user-supplied ``locale`` and ``timezone``. ) annotationsN)Path)AnyDict NamedTupleOptional)OSCPU_OVERRIDEPLATFORM_OVERRIDE USER_AGENT)Profile) SessionLocale) persona_forrender_noise_seed)configure_proxyz 5.0 (Windows))zgeneral.useragent.overridezgeneral.platform.overridezgeneral.oscpu.overridezgeneral.appversion.overridezDict[str, str]_NAVIGATOR_OVERRIDESzui.-moz-cellhighlightz#CECECEzui.-moz-dialogz#F0F0F0zui.-moz-dialogtextz#000000zui.-moz_menubarhovertextz#15141Azui.-moz_menuhoverz #0000001Ezui.-moz_menuhovertextzui.-moz_oddtreerowz#FFFFFFzui.activeborderz#B4B4B4zui.activecaptionz#99B4D1zui.appworkspacez#ABABABz 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dom.ipc.processCount.webIsolatedzdom.file.createInChildz-browser.safebrowsing.downloads.remote.enabledzapp.update.autozmedia.webspeech.synth.enabledz)zoom.stealth.webgl.shader_output_languageesslz$zoom.stealth.text.freetype_hintstylez$zoom.stealth.text.freetype_antialiaszoom.stealth.webgl.extensionszoom.stealth.webgl2.extensionszzoom.stealth.webgl.int_params)zoom.stealth.webgl.int2_paramsz$zoom.stealth.webgl.shader_precisionszoom.stealth.webgl.float_paramsz"zoom.stealth.debugger.force_detachz%zoom.stealth.canvas.substitute_pixelsz$zoom.stealth.webgl.substitute_pixelszdom.webgpu.enabledzzoom.stealth.audio.fp_noiseDict[str, Any] _BASELINE)zgfx.webrender.allzgfx.webrender.force-disabledzwebgl.force-enabled_LINUX_XVFB_WORKAROUNDS)zsecurity.sandbox.gpu.levelzsecurity.sandbox.content.level_WIN_VIRT_DESKTOP_WORKAROUNDS)29283390133902prefsreturnNonect|ddpd}|sdSgg}}|dD]>}|ddd}|tvr|n||?|sdSd||d<t|ddpd}d|r|gng|z|d<dS) a Move the spec-float pairs out of int2_params and into float_params. Done here rather than in the pool data so it holds for every persona and for any pool regenerated later, and so the reason travels with the code instead of with fourteen JSON rows. r@r<Nr|r rrA)strgetsplit_WEBGL_FLOAT_PAIR_ENUMSappendjoin)rJsrckeepmovedentryenumexistings DC:\Projects\Muse2API\.venv\Lib\site-packages\invisible_core/prefs.py_route_float_pairsr\1s  eii8"==C D DC b%D3KK{{3""1%111tCCEJJJJ .1hhtnnE *+599>CCIrJJH/2xx '(R500202E +,,,profiler ct|jj|jj}|rN|dD]#\}}|dkrt ||d<|||<$t |n d|d<d|d<|S)uThe validated WebGL persona, and the reason it is applied on every host. On Linux we spoof to a Windows ANGLE renderer string (profile.gpu.renderer) so cross-platform sessions report a consistent Windows GPU identity. On Windows/mac, spoofing a renderer string ALONE is unsafe - the ~81 getParameter values stay real, so a name<->params hash mismatch FP Pro flags (setting GTX 980 over real Arc A750 params scored ~0.70). Instead we apply a VALIDATED PERSONA (see _webgl_personas): a {renderer, vendor} whose params are the shared ANGLE D3D11 caps (vendor-independent - identical on any host, per the ANGLE source) and whose extension list is FORCED below. That is a coherent fake GPU that passes FP Pro host-independently (the host's real GPU never leaks). If no validated persona exists for the sampled gpu_class yet, fall back to the host-real renderer (empty -> native ANGLE; SanitizeRenderer at ClientWebGLContext.cpp:2592). Apply the camoufox-derived real-Firefox GPU persona on EVERY host (Win/Linux/Mac). We must ALWAYS look Windows (rule), and the WebGL override is platform-independent: SanitizeRenderer (ClientWebGLContext.cpp) is pure string regex, and the param/extension overrides are pref-driven, so the C++ presents the SAME Windows ANGLE GPU regardless of the host's real GL backend (it never consults it when the pref is set). This is why a Windows GPU shows correctly even on a Linux/Mesa host (no more "Generic Renderer"). Returns the persona, because `_apply_extension_lists` needs to know whether one was applied. ⛔ This READS the profile's persona, it does not choose one. It used to call `select_persona(profile.seed)`, which was a second answer to a question `generate_profile` had already answered, and the two diverged as soon as a `pin` arrived: the profile said one GPU and this function wrote another into the prefs, so `pin={"gpu.renderer": ...}` changed the label and never the browser. The choice lives in `_webgl_personas.choose_persona`, called once from `generate_profile`; here we look the chosen entry back up by the renderer+vendor the profile carries. rJzzoom.stealth.webgl2.enabledzwebgl.enable-webgl2r<zzoom.stealth.webgl.rendererzzoom.stealth.webgl.vendor)rgpurenderervendoritemsboolr\)rJr^persona_k_vs r[_apply_gpu_personarhHsB'+. 0BCCG 2 g&,,..  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Until 37.33.0 invisible_playwright, invisible_selenium and invisible_puppeteer each computed it from ``profile.screen`` with the same three lines - and all three took the PANEL's device pixels for CSS, which is ScreenProfile.css_width's story. )widthheight)viewportro)rorrprq)r^rrs r[context_geometryrsFN+ME6"'6:: ' 8!(!:<< = ==r]c|jj|d<|jj|d<|jjdk}|jj|d<|rdnd|d<d|d<|rd nd|d <|jj|d <t |jj|d <t |jj}|rd nd|d<||d<|jj|d<|jj rdnd}||d<||d<||d<||d<dS)Nzzoom.stealth.hw_concurrencyzzoom.stealth.storage.quota_mbrzzoom.stealth.max_touch_pointsr zdom.w3c_touch_events.enabledzzoom.stealth.pointer.primaryzzoom.stealth.pointer.allzzoom.stealth.voices.listzmedia.navigator.streams.fakeznetwork.cookie.cookieBehaviorzdom.storage.enabledzzoom.stealth.fonts.genericszui.prefersReducedMotionzui.prefersReducedTransparencyzui.invertedColorszui.useAccessibilityTheme) hardware concurrencystorage_quota_mbmax_touch_pointsvoicesrdfake_media_devicesstorage_enabledgenericsaccessibility_overrides)rJr^touch_storage_a11ys r[_apply_hardwarers9180@0LE '(070@0QE )*.   - 1E070@0QE )*6;0AE () 16E ()?D0Q5E $%070@0GE $%04W5E5X0Y0YE ():G$455H5=0D1E )*08E  070@0IE '( !9 @AAqE05E #$05E )*05E 16E $%%%r]c`|jj|d<|jj|d<|jj|d<dS)Nzzoom.stealth.audio.sample_ratez$zoom.stealth.audio.output_latency_msz$zoom.stealth.audio.max_channel_count)audio sample_rateoutput_latency_msmax_channel_countrJr^s r[ _apply_audior?s84;M4ME *+4;M4SE 014;M4SE 0111r]cd|d<|jj|d<|jj|d<|jj|d<|jj|d<t |d<t |d<dS) NTzmedia.eme.enabledzmedia.av1.enabledzmedia.encoder.webm.enabledzmedia.webm.enabledzmedia.mp4.enabledz!zoom.stealth.media.decode_supportz zoom.stealth.media.decoding_info)codec av1_enabledwebm_encoder_enabledmediasource_webmmediasource_mp4_WIN_DECODE_SUPPORT_WIN_DECODING_INFOrs r[ _apply_codecsrEsp(15E 07 0IE 07 0RE &'18 0NE 07 0ME  2EE -.0BE ,---r]c|j}|j|d<|j|d<|j|d<|j|d<|j|d<|j|d<|j|d<dS) aThe glyph rasterisation parameters, declared instead of asked for. Six values that the engine reads once at startup and then keeps for the whole process. Before this they came from the machine: `gfxDWriteFonts::UpdateClearTypeVars` ran defaults -> SYSTEM -> prefs, so the user's own ClearType tuning survived wherever a pref was absent, and on a development machine that produces the answer you wanted anyway. The binary now skips the system query entirely when stealth is on, so these prefs are the only source. The FreeType pair is not a mirror for its own sake. Skia's glyph mask gamma defaults to LINEAR on Linux against DWrite's 2.2, which is two different coverage curves over the same outlines, and no amount of matching fonts closes that. 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This used to be a comment saying there was nothing to configure (below), and that was true only of the FONT LIST. The system-font surface is a different thing and it was not covered: with these prefs absent, Gecko answers `font: menu` from its own per-OS defaults, which on Linux name "Sans" at 13.3333px - a family that does not exist on Windows, on a build whose every other signal says Windows. Measured 2026-08-07, that single disagreement is what drove FpJS Pro to tampering=True on Linux with Windows clean, same seed and same IP. The 26 prefs also ship compiled into the binary's all.js. The duplication is deliberate: the binary has to stay right when launched WITHOUT this package, and the failure mode is not a subtle drift but a family name no Windows machine has. all.js is the floor; this layer is the source of truth that can move without a Firefox rebuild, and being a layer it can be overridden by `extra_prefs` like every other surface. zui.font.z.sizezfont.size.monospace.r3zfont.minimum-size.thrc3NK|] }tt|V!dS)N)rOint).0vs r[ z_apply_fonts..s?:8:8CFF :8:8:8:8:8:8r]z!zoom.stealth.text.coverage_ladderzzoom.stealth.fonts.manifestN) _UI_FONT_ELEMENTSr ui_familyui_size_MONOSPACE_LANG_GROUPSmonospace_sizerT alpha_laddermanifest)rJr^elementlangs r[ _apply_fontsrs&%@@&-l&<"""#,3<+?''''((&KK/6|/J+T++,,%'E ! 25:8:8$\6:8:8:82828E -.|E/6|/D+,,,EEr]ct|j|d<|jrdnd|d<d|d<d|d<d|d<|js|td Sd S) zDDark mode, plus the Windows colours palette when the theme is light.zui.systemUsesDarkThemerr z0layout.css.prefers-color-scheme.content-overridez1.0zui.textScaleFactorz ui.hourCyclezui.selectTextfieldsOnKeyFocusN)r dark_themeupdaterrs r[ _apply_themers&)'*<&=&=E "# &Q <=N#(E E. ./E )*  ( &'''''((r]localerc`|j|d<|j|d<|j|d<d|d<|j|d<dS)Nzintl.accept_languageszgeneral.useragent.localezintl.locale.requestedrzprivacy.spoof_englishzjuggler.locale.override)accept_languagesprimary)rJrs r[ _apply_localersO*0)@E !" *0E $%)/E !")*E !"6*0)@E #$$$r]timezonerOc|r||d<dSdS)Nzjuggler.timezone.override)rJrs r[_apply_timezonerLs'6 .6)*** 66r]c4t|j|d<dS)Nzzoom.stealth.fpp.hw_seed)rseedrs r[_apply_render_seedrUs):',(G(GE $%%%r]cH|j}d|dz dzdzd|dzdz|d<dS)Nz192.168.r .zzoom.stealth.webrtc.host_ip)r)rJr^_ss r[_apply_webrtc_host_iprasC B+ZrQw#o6I+Z+ZBQTHWXL+Z+ZE '(((r]cdtjds|sd|d<d|d<dSdSdS)aWindows/mac extension list. - persona active -> the coherent webgl1/webgl2 extension lists (in the GPU's real native order) were ALREADY applied above from the GPU pool's `prefs`, alongside the matching renderer + params + shader-precisions. Nothing to do here. - no persona -> clear so the host-real renderer reports its native extension set (matches real vanilla captures for that host's GPU). linuxr<r>r?N)sysplatform startswith)rJres r[_apply_extension_listsrjsS < " "7 + +5G524-.24.///5555r]virtual_displayrdcDtjdr5tD]\}}||||rEtjdkr7t D]\}}|||dSdSdS)zH`setdefault`, deliberately: anything a section above chose already wins.rwin32N)rrrrDrc setdefaultrF)rJrkrs r[_apply_platform_workaroundsrxs |w''#+1133 # #DAq   Q " " " "#3<72217799 # #DAq   Q " " " "##22 # #r] extra_prefsOptional[Dict[str, Any]]c~|r8|D]%\}}|||d|||<$dSdS)aULAST, so users can override anything we set. A value of None is a sentinel meaning "delete this pref entirely from the final dict" - useful for A/B harnesses that need to test what happens when an override is unset (vs set to empty string, which for some prefs like general.useragent.override means literally empty UA). N)rcpop)rJrrrs r[_apply_caller_overlayrsf%%''  DAqy !T""""a   r]zen-USrrrr'SessionLocale | str | None'cTtt}t||}t||t ||t ||t ||t||t||t||t||t|tj |t||t||t!||t#||t%||t'|||S)aReturn a complete prefs dict ready for Playwright's firefox_user_prefs=. Args: profile: Bayesian-sampled fingerprint (from ``generate_profile``). locale: The session language: the ``SessionLocale`` a launch decided (``prepare_session_geo(...).locale``), or a BCP-47 tag such as ``"en-US"``, which is decided through ``decide_session_locale`` - the same derivation, so both give identical prefs. None or "" is en-US; "auto" is refused, since resolving it needs the egress. timezone: IANA timezone name, e.g. ``"America/New_York"``. extra_prefs: Optional overlay applied LAST. virtual_display: When True on Windows, apply GPU-disabling workarounds to prevent the GPU process from crashing on virtual desktops that have no D3D11 backend. The body is the ORDER, and the order is the contract: the caller overlay runs last so it can override or delete anything, and the platform workarounds `setdefault` so they never take a choice away from a section above them. Each step keeps the reasoning it was written with. )r)dictrCrhrmr|rrrrrrrrofrrrrrr)r^rrrrrJres r[translate_profile_to_prefsrs!<!OOE 00G5'***%!!!E7###      (((%!!!   %)&11222E8$$$ug&&&%)))5'***GGGG%--- Lr]g?c(eZdZUdZded<ded<dS) ComposedPrefsa|The prefs, and the proxy Playwright still has to be told about. Two returns because `configure_proxy` has two outputs: it writes the SOCKS auth prefs (which the binary reads) and hands back the HTTP/HTTPS dict (which only Playwright can act on). A composer that returned prefs alone would force every caller to run the proxy step a second time to recover it. rBrJOptional[Dict[str, str]]playwright_proxyN)__name__ __module__ __qualname____doc____annotations__rr]r[rrs6......r]rhumanizerfloatc|durtS t|}n#ttf$r tcYSwxYw|dkr|ntS)aThe motion cap implied by a `humanize=` value, for any value. Anything unusable falls back to the default rather than raising or being written through. `get_default_stealth_prefs` used to do `float(humanize)` bare: `humanize="fast"` raised ValueError out of a pref builder, and `humanize=-1` wrote `stealthfox.humanize.maxTime = "-1.0"` into the profile. The wrapper's own copy of this function had been robust since 0.4.0; this is that behaviour, in the one place both now read. Tr)HUMANIZE_MAX_SECONDSr TypeError ValueError)rvalues r[humanize_max_secondsrsf4##$h z "$$$####$AII55#77s 88 cX|sddiSdtt|tdS)a*The `stealthfox.*` prefs implied by a `humanize=` value. Falsy turns the binary's own path expansion OFF and writes no cap, which is what a caller drawing its own trajectories needs: with both generators live the browser expands a path between each pair of the caller's waypoints. stealthfox.humanizeFT)rzstealthfox.humanize.maxTimezstealthfox.humanize.stepMs)rOrHUMANIZE_STEP_MS)rs r[humanize_prefsr!sB .%u--#'*+?+I+I'J'J'7   r] show_cursorc$dt|iS)uThe `stealthfox.*` prefs implied by a `show_cursor=` value. ⛔ IT IS A DEMO SWITCH, NOT A STEALTH ONE, and the default does not change that: the overlay draws in the browser's own chrome document, which the page cannot reach, so a site learns nothing either way. What it changes is what a PERSON watching the monitor sees - a pointer gliding across a window with nobody touching the mouse reads as "this is a bot" to anyone glancing at the screen. That was the argument for shipping it off, it is still the argument, and the owner decided on 2026-08-28 to ship it ON anyway, the way Camoufox does. A caller who wants the old behaviour passes `show_cursor=False` and gets it. ⛔ AND IT IS DECLARED HERE, like every other engine switch, so the browser reads and never decides. The pref is written into the profile before the browser starts, so it is in force from the first window rather than from the second launch. zstealthfox.showcursor)rd)rs r[show_cursor_prefsrHs$ $T+%6%6 77r])rrrrproxyrrsurvive_hard_kill Optional[str]rrrct|||||} |rt|| nd} | dd| dt|"| t || t |tn||r,| dd| ddt| | S) a=Every pref a session runs with, in one place. Each layer above the fingerprint is a flag, and a flag left at its default means that layer is not applied - so a caller that wants only the fingerprint gets exactly what `translate_profile_to_prefs` returns. `humanize=None` is not the same as `humanize=False`: None leaves the two `stealthfox.humanize*` prefs untouched, which is what the direct-launch path has always done, and False writes the pref off. The distinction matters because the pref has a default compiled into the binary, and never writing it is not the same as writing it false. What each caller still owns is DELIVERY, which is the part that genuinely differs: the direct-launch path writes a `user.js`, the Playwright path passes a dict to `firefox_user_prefs=`. rNz0widget.windows.window_occlusion_tracking.enabledFz invisible_firefox.usage_ping.urlz#toolkit.startup.max_resumed_crashesz&browser.sessionstore.resume_from_crash) rrrUSAGE_PING_URLrrrDEFAULT_SHOW_CURSORr) r^rrrrrrrrrJrs r[compose_session_prefsr ]s8 ''    E9>Gue4444> GOOO 7HHH ^H--... 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