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I am sorry to be the bearer of bad news, but if you're asking specifically for the Windows XP SP3 OS and the Spotify web player on a Mozilla type browser, there exist several serious reasons this isn't possible! 1, Spotify is one of the commercial media outlets that heavily use DRM for content protection; on Firefox and its forks, content decryption is delegated to CDMs (Content-Decryption-Modules), which are closed-source modules ("blackboxed") bundled with the open-source browser, to satisfy user watching/listening needs. 2. Mozilla had first incorporated Adobe Primetime CDM for the decryption of DRM'd content (a CDM familiar to XP users, as it is currently being "exploited" to enable h264/aac decoding support in the FxESR 52.x.x browser (... and some of its forks); this is not, however, a use intended initially by the Mozilla devs ), but that CDM was abolished in Fx 53.0+ in favour of the universally accepted, Google-owned, Widevine CDM. 3. As you probably know, all Mozilla browsers come without native support for patented decoders, like h264 (for video) and aac (for audio); if Mozilla went the "Google Chrome" way and bundled these decoders with Firefox, they'd have to pay annually huge sums of money as license fees to the patent holders (namely to the MPEG-LA group); they opted for a far less costly solution, that is to rely on system decoders (the ones bundled with the actual OS). 4. Speaking of Microsoft and the Windows OS, the first iteration of Windows with native h264/aac decoders came with the launch of Windows 7 OEM, though its predecessor OS, Windows Vista, was, too, equipped with similar support (be it less refined) when "Platform Update Supplement" for Vista SP2 was released via Windows Update.... Microsoft chose not to bestow h264/aac decoding support to Windows XP which is, in a way, the deal-breaker in your query... 5. Widevine CDM inside Firefox (or one of its forks) only executes decryption of the DRM'd media streams, the decrypted stream has then to be properly decoded to video and/or audio; Widevine in Firefox has been programmed to search for decoders only in the OS level (not the browser); remember that it is (very) closed source, this assumption is the result of tests only, no actual code for Widevine is, of course, publicly released... 6. Since Windows XP lacks native system decoders (and no, installed codec-packs don't work for Widevine), the Mozilla devs have disabled Widevine on XP, and only enabled it on Vista SP2 upwards; hence, minimum system requirements for services that employ Widevine on Firefox is WinVistaSP2+; however, since Vista has been EOL'd by Microsoft, this is currently read as Win7SP1+... 7. Specifically in the case of the Moonchild Productions' Pale Moon fork, because of their opposition to the closed-source nature of CDMs, they have purposely disabled DRM (CDMs) in the browser, so it's currently impossible to use DRM'd services (e.g Netflix, Amazon Prime etc.) in that browser, regardless of OS; the same holds true for New Moon 27+28, both Pale Moon forks... 8. Certain services that rely on Widevine did implement, at least in the past, a workaround when WV was absent in the browser, and that was to use the Microsoft owned Silverlight NPAPI browser plugin for both decryption+decoding; Silverlight has been deprecated by Microsoft and NPAPI plugins (except Adobe Flash) have been deprecated by all the major browser vendors, so using Silverlight in a browser as a WV fallback is pretty much a moot point; I am not subscribed to Spotify, so I can't be 100% sure it doesn't support Silverlight in Pale Moon (ergo New Moon); this chance is very bleak, if you ask me, though... 9. Of the rest of the "roytam1" browsers, excluding KM-Goanna and FxESR 45, only Serpent 52.9.0 and Serpent 55.0.0 were compiled with Widevine support, but, as stated previously, only if you are on Windows Vista SP2 or later; on XP, WV is disabled and doesn't show up inside about:plugins... (NB: Widevine on Serpent 55.0.0 on Windows Vista was initially non-functional (worked OK in Win7+), but this was rectified in https://github.com/roytam1/basilisk55/commit/cbc95b1 ; many thanks @roytam1 ) I wrote this analysis not only as an answer to your own query, but as a point of reference for other XP users... On XP, the only remedy I possibly see is trying to work things out with the last working version (49) of Google Chrome there; GC comes with its own version of patented decoders, and, AFAIK, has Widevine v1.4.8.903 inside; perhaps install an extension to fake a recent Chrome version to Spotify and see what comes out of it... Best of luck!

... I had explained this in fine detail in the past ; perhaps it was lost when the forum's database was corrupted back in June 1. First grab latest Polish language pack (for PaleMoon 28) from http://addons.palemoon.org/language-packs/ Do not install in NM28, just save to file (it should have an .xpi extension, filename=pl.xpi). 2. An .xpi file is just a renamed .zip file; if you have 7-zip installed, it can decompress .xpi files without issue; if not, rename the file to pl.zip and use your favourite archiver app to extract to a pl folder. 3. Open the folder and locate file install.rdf ; open that file in a proper text-editor (Notepad++, PSPad, etc.); if you don't have a proper text-editor installed (you should), use Window's notepad as a last resort... 4. Locate line 31 of that file; it should read: <em:maxVersion>28.0.*</em:maxVersion> 5. Change "28.0.*" to "28.1.*", save the change and close the file in your text-editor. { 5a. Optionally, you can also change line 12 to read: em:version="28.1.0" and then save the change to file } 6. Select all contents of folder pl (but not the actual folder itself) and re-zip them back to a pl.xpi file (you can also rename that to 28.1.0_pl.xpi, for telling apart from original download...) 7. Open latest NM28 (v28.1.0a1) and navigate to about:addons (addons manager); drag and drop file (28.1.0_)pl.xpi; it should offer you to install it; a browser restart would be needed... 8. For the LP to apply, you'd have to set in about:config general.useragent.locale;pl (followed by another browser restart). DISCLAIMER: The procedure outlined is just a hack; the localization may break with any future NM 28.1.x update, if new strings are added to the code by Moonchild devs for which no translated Polish strings are there in the installed pack; according to the extent of the breakage, some functions may be broken, or even the whole browser might be unable to start; in that case, start in safe mode, disable the language pack and restart in normal mode (en-US GUI). You should inquire about updated packs at the GitHub repo... @kitaro1 : That should also interest you! @roytam1: Maybe also pin this post to first page, because people seem to be unable to apply what is a simple procedure for you and me...

banana

Thank you very much VistaLover. Some great info there. Perhaps it should be pinned.

Hello there Since you appear to be a fellow Vista user, I decided to help and investigate... Two major issues for me: 1) I don't know any Polish, 2) (obviously) I'm not in Poland currently... I had to use a lot of Google Translate to decipher all these messages (in Polish) I was presented with and to be able to click the right on-screen buttons... I then had to find video content that wasn't geo-fenced (restricted to Polish IPs, only ); I think I settled for Ameryka-Marzen-Odcinek-12 I tried a variety of browsers on my Vista laptop, but to no avail; I suffered exactly what you reported, i.e. a black rectangle in the supposed place of their embedded player... I then kindly asked my sister to test that URL on her Firefox Quantum v61.0.2 (32-bit) copy on her Win7 SP1 64-bit laptop: she had to temporarily disable uBlock0 on that site, but, lo and behold, the programme started playing in an HTML5 player... After some further troubleshooting I did, I think I've solved the riddle: That (nasty!) Polish site performs User-Agent sniffing and simply doesn't like the Vista (NT 6.0) part of the UA, so they decline to load their player on Vista machines (didn't test, but I'm sure the same fate is reserved for XP, too, i.e. NT 5.x) The solution I chose was to apply a site-specific-UA-override (SSUAO) for "www.ipla.tv" to mimic Fx 62 (due imminently) on Win7 OS; in a "roytam1" browser (NM27/28, Serpent 52.9.0/55.0.0) open about:config and create a new string pref with name=general.useragent.override.www.ipla.tv value=Mozilla/5.0 (Windows NT 6.1; rv:62.0) Gecko/20100101 Firefox/62.0 restart browser, clear cookies for "www.ipla.tv" and reload VOD page; you are then presented with so you have to disable adblocker (ublock0 in my case) and reload ; after reloading, you have to literally sit in front of at least 3min worth of ads; if you change to another tab, the ads and time counter are paused and only resume if you focus back to that tab... Very nasty behaviour indeed Finally, after the ordeal ends, main video starts playing: The test above was conducted on a Windows Vista SP2 32-bit Home Premium laptop, browser was latest New Moon 27 offering (v27.9.1a1, 32-bit, 2018-08-24) with lav-dll-lite-mmx dlls put correctly in place...

@dencorso I'm probably just being dense due to the heat (34C here, on Sep 1st!), but you first quote a part of my post in which (part) I say nothing about Adobe Primetime CDM, then you proceed with discussing that same CDM; I don't get the connection... Yes, Mozilla has removed automated in-browser downloads (Bug 1337121, Bug 1304899) ... Do you actually mean that the CDM there is able to perform the role it was first designed for, decrypt DRM content? Please provide example cases... AFAIK, most DRM content providers won't use / don't support that deprecated CDM, either as a standalone decryption solution nor as a fallback when Widevine CDM is absent/disabled/non-functional... As I stated in that previous post of mine, so I can only surmise that by "still works OK" you are referring to that specific function of that CDM (which, for all intents and purposes, was not the reason it was conceived and bundled with the Firefox browser...). The Moebius platform both Basilisk 55 (by Moonchild - EOL'd) and Serpent 55.0.0 (by roytam1) build upon was forked from a Mozilla 53.0a1 platform snapshot; Mozilla themselves gutted out Adobe Primetime CDM support code from Firefox in Bug 1329543; mozilla-central Nightly-53.0a1 builds after 20170118 have no support for it; if Moonchild forked the platform from a snapshot after Jan 18th 2017, then it's safe to deduce Bk55 has no support, either; but I am uncertain of the exact code timestamp Moebius was forked from, so I'll leave the actual test to someone else... Most probably, Moebius has no support for that CDM... But Serpent 55.0.0 on XP does have native h264/aac decoding support, because roytam1 patched third party library ffvpx to include support for these patented codecs, too...

No. On XP the Adobe Primetime CDM, provided on gets it and installs it by hand, still works OK on FF esr 52.9.0 and on Serpent 52/UXP. I don't know whether it also works on Basilisk 55, because I have no interest in it, at least for now, so I haven't tested.

New build of basilisk/UXP for XP! Test binary: Win32 https://o.rthost.cf/basilisk/basilisk52-g4.1.win32-git-20180901-4f504d46b-xpmod.7z Win64 https://o.rthost.cf/basilisk/basilisk52-g4.1.win64-git-20180901-4f504d46b-xpmod.7z diff: https://o.rthost.cf/basilisk/UXP-xp-gitdiff-20180606.7z PM28XP build: Win32 https://o.rthost.cf/palemoon/palemoon-28.1.0a1.win32-git-20180901-4f504d46b-xpmod.7z Win64 https://o.rthost.cf/palemoon/palemoon-28.1.0a1.win64-git-20180901-4f504d46b-xpmod.7z Official repo changes since my last build: - Refresh nsStringBundleService and nsHttpHandler when the browser locale is changed (02211f844) - Add a horizontal scroll action option for mouse wheel. (f0e053a1b) - Switch to using a single memory allocation arena (4ceb21241) - Add missing } (4cbcba787) - Merge pull request #733 from JustOff/PR_locale_changed_refresh (2dc1703c0) - Don't build ffvpx on 32-bit platforms (except Windows) (a64465bde) - Update installer strings for Pale Moon to match toolkit nsis installer. (f6d3d16ac) - Update HSTS preload list (cc0e6c7ec) - Sync disabled state of number control regardless of appearance. (693656e99) - Fix incorrect code removal in ipc. (0bc251143) - Merge pull request #741 from trav90/media-work (f266d26eb) - Revert "Bug 1444668 - Avoid allocating large AssemblerBuffers. r=luke, r=bbouvier, a=RyanVM" (f214aa5db) - Merge branch 'master' of https://github.com/MoonchildProductions/UXP (1edc7328f) - Revert "Bug 1388020. r=nical, a=RyanVM" (4f504d46b)

https://www.spotify.com/download SpotifyFullXPSP3.exe = filename At the above URL, you can download the SPOTIFY WinXP stand alone APP. And I have that installed and it does work for me here (WinXP SP3). So, I am okay with that. I just wanted to see the SPOTIFY WEB PLAYER in action too. Did NOT realize the complex issues on that. Your DETAILED explanation above is of AMAZING quality, THANKS!

These are actually just regular updates to fix bugs in the .NET July Updates. I did not come across them from my regular sources, so good catching! I'll be adding them to the repository. These are just the Security and Quality Rollups of July 2018, and those are always superseeded by the newest ones available (in this case, the August ones, which I already have in the repository). Thank you so much. Just having people using the repo is enough motivation to keep it updated from month to month. If this makes it easier for people to stay on anything that is not W10, it's a victory

@greenhillmaniac Are you missing KB4339291 & KB4339854 in July's updates? https://support.microsoft.com/en-us/help/4339291/security-update-for-security-feature-bypass-vulnerability-in-windows https://www.catalog.update.microsoft.com/Search.aspx?q=KB4339291 https://support.microsoft.com/en-us/help/4339854/win32k-elevation-of-privilege-vulnerability-in-windows https://www.catalog.update.microsoft.com/Search.aspx?q=KB4339854 Edit: I forgot KB4340007 (.NET) Security Only update for .NET Framework 2.0 SP2, 3.0 SP2, 4.5.2, and 4.6 https://support.microsoft.com/en-us/help/4340007/security-only-update-for-net-framework-2-0-sp2-3-0-sp2-4-5-2-and-4-6-f https://www.catalog.update.microsoft.com/Search.aspx?q=KB4340007 ------------- Thanks again for keeping your repository updated :) .

Still on the fence, whether or not to go with SP4; I might still. Would be worth taking the time to manually install each update while we can. Thanks for the advice here!!