Browsers FAQ

The official support forum for the browser platform based on Goanna/UXP by roytam1, servicing many Windows 2000/XP users (particularly those on older hardware).

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Browsers FAQ

Unread post by roytam1 »

FAQ:

Q: Having audio distorted when watching Twitter/etc.?
A: Please try turning on "Firefox compatibility" in options dialog or either "general.useragent.compatMode = 2" or "general.useragent.compatMode.firefox = true" in about:config and reload the page.

Another workaround for this issue, discovered by forums member Compa, was to uncheck the use of MSE for MP4 video in the main options window.

Q: Can't play H264 clips? (for PM27/KM76/FF45)
A: Download following packages for your browser edition(32bit/64bit) and extract DLLs to same place as palemoon.exe lives.

32bit LAV dlls (lite build from ffmpeg-3.4.9)
64bit LAV dlls (lite build from ffmpeg-3.4.9)

older builds:
32bit LAV dlls (extracted from K-Lite codec pack 13.5.5)
64bit LAV dlls (LAV Filters 64bit 0.70.2)

If you have an older processor with no SSE, try either of these packages below instead depending on your configuration:
32bit Non-SSE (ffmpeg 3.4.9 lite build)
32bit Non-ASM (ffmpeg 3.4.9 lite build)

older builds:
32bit Non-SSE (ffmpeg 3.1.1 lite build)
32bit Non-ASM (ffmpeg 3.1.1 lite build)

Q: AV1 Support? (for UXP-based applications except mailnews)
A: You need to enable "media.av1.enabled" in about:config

Q: VP9 Support? (for PM27)
A: VP9 works if async MSE option is unchecked and "Enable MSE for WebM Video" checked in options.

Q: Extensions/Themes not working after updating binaries.
A: If you encounter extensions not show icon, clicking options button of extension causing browser unresponsive, etc. please try following actions:
1.a Killing palemoon.exe process
1.b Copy whole extensions folder out of profile folder (to somewhere else for example, desktop)
1.c Restart browser without restoring previous sessions
1.d Goto about:addons page
1.e Drop XPI files from the copied-out extensions folder to about:addonss page One-by-One.
1.f After all XPI files are dropped and installed/updated, restart browser

Q: Virus detected?
A: Tell your anti-virus program to exclude palemoon.exe and/or plugin-container.exe. Some anti-virus heuristic engines (for example symantec's sonar engine) is too sensitive to palemoon.exe/plugin-container.exe network activities.

Q: Where's your patches for compiling my own?
A: Please visit the link in the release thread. Latest source patch files are named "sources_patches_YYYYMMDD.7z" in that page.

Q: serpent browser showing basic pages in GMail?
A: set these to "true" in about:config
general.useragent.compatMode.firefox
general.useragent.compatMode.gecko

Q: Should I let official Pale Moon and "New Moon" both using same profile (at the same time / alternatively)?
A: it is not recommend to do that, as they have different NSS security library, which has different encryption procedure to the saved password database. Same profile being "touched" by different gecko/goanna applications may cause unexpected behaviors.

If you want to launch both Pale Moon and "New Moon" / Basilisk and "Serpent" / etc. at the same time, one of them should be in "--no-remote" portable mode.

Q: I'm getting 0xC000001D error when starting Serpent/UXP-ia32 browser!
A: your processor does not support CMOV instruction. VC2015 IA32 build requires CMOV instruction support. here is a list of processors with CMOV instruction support:
- Intel: Pentium Pro or later
- AMD: K7 (original Athlon/Duron) or later
- VIA: C7 or later
- Transmeta: all CPUs are capable to run sp52-ia32.
- Cyrix/IBM: 6x86MX or later, MediaGXm(MediaGX-S) or later
- National Semiconductor/AMD: Geode GX or later
- DM&P/Vortex86: Vortex86DX3 or later

Q: I need WebAssembly support!
A: for NM28/SP52, go to about:config and enable javascript.options.wasm

Changelog for FAQ
2020-12-03: Initial writeup by roytam1 (was copypasted to this forum)
2021-02-09: Some small cleanups, typo fixes, and added a workaround for the Twitter video bug. --Compa

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