Browser webGL error on up-to-date Firefox on older Windows 10 machine

[atomrab]

This is unlikely to be a major problem for others, because it appeared on a ten-year-old Dell PC running Windows 10 and approaching the end of its support life, but this error appeared when attempting to load the client visualization interface in a current version of Firefox:

Client error
Error: (regl) webgl not supported, try upgrading your browser or graphics drivers http://get.webgl.org/
Error stack

raise@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:280:26103
onDone@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:280:40118
parseArgs@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:280:43223
wrapREGL@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:280:154755
Map@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:179:151803
[328]</module.exports@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:179:147187
initializeMap@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:78:196617
componentDidMount@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:78:202957
Ji@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:224:83568
Sj@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:224:101068
[835]</exports.unstable_runWithPriority@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:318:3998
cg@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:224:45420
Jj@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:224:97768
yj@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:224:93978
[780]</fg/<@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:224:45711
[835]</exports.unstable_runWithPriority@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:318:3998
cg@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:224:45420
fg@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:224:45658
gg@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:224:45591
Ig@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:224:90595
enqueueSetState@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:224:49383
[822]</F.prototype.setState@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:280:1325
[119]</withLoadProgress/</loadData/<@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:78:102316
[117]</combine/<@https://client.perio.do/periodo-client-5.0.11-44-gf51a871.min.js:78:81685

Component stack

in _Map
in div
in UI:Box
in UI:WorldMap
in div
in UI:Flex
in UI:LabeledMap
in div
in CoverageMap
in div
in UI:Box
in LayoutBlock
in div
in UI:Box
in UI:Section
in details
in UI:Box
in UI:Details
in div
in UI:Box
in LayoutRenderer
in Unknown
in Navigable
in div
in UI:Box
in BackendHome
in RenderErrorHandling
in BreadcrumbedComponent
in Connect(BreadcrumbedComponent)
in ResourceLoader
in ReduxStoreComponent
in MenuedComponent
in BackendKnower
in Connect(BackendKnower)
in Resource:backend-home
in div
in UI:Box
in div
in UI:Grid
in ThemeProvider
in PeriodoApplication
in ORGShell
in IndexedDBChecker
in ThemeProvider
in Provider
in Shell

[rybesh]

I think this is probably a specific problem with this machine; all browsers have supported WebGL for a long time now.