Firefox unfelicities and solutions

[tlaronde%polynum.com@localhost]

On a amd64 node running NetBSD 8.0, I have installed Firefox-71 from
pkgsrc.

These tips may help others and may allow a developer to identify the
root of some problems.

1) Webgl.

I wanted to verify a DXF file and Autodesk proposes an online viewer
using Webgl.


https://get.webgl.org/

said that Firefox apparently supported Webgl but it was not functionnal.

In fact, setting in about:config

webgl.force-enabled true

in sufficient to get things working.

2) Crashes.

When trying some actions (save as...) or when reading some pages,
Firefox crashes.

Firefox was exec'ed from twm(1) menu.

In order to see at least some messages to have clues about what was
going on, I run firefox from an xterm...

And then, surprise : no crashes...

Apparently this has something to do with Javascript sending messages to
the console and with the (apparently) absence of a tty when run from the
twm(1) menu.

So, now, I run it from an xterm and since it "speaks" a lot (a lot of
warnings from various components), I invoke it with

firefox --MOZ_LOG_FILE=/dev/null&

to keep it quiet.

HTH,
-- 
        Thierry Laronde <tlaronde +AT+ polynum +dot+ com>
                     http://www.kergis.com/
                       http://www.sbfa.fr/
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