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Synonyms feature: not working with sites such as FreeBSD Forums (XenForo), dpaste and

Working at <URL not disclosed, domain>:

Not working whilst editing

Reproducible – no dialogue in response to a double-click – at in a separate Firefox profile with two extensions alone enabled:

  1. Grammar & Spell Checker — LanguageTool 4.4.1
  2. LastPass: Free Password Manager

% pkg info -x firefox
% freebsd-version -kru
% uname -aKU
FreeBSD mowa219-gjp4-8570p-freebsd 14.0-CURRENT FreeBSD 14.0-CURRENT #116 main-n251146-d109559ddbf: Mon Nov 29 14:34:59 GMT 2021     root@mowa219-gjp4-8570p-freebsd:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBU
G  amd64 1400043 1400043

Also reproducible (authentication not required) at:

What aspects of these sites might be incompatible with the LanguageTool extension?

Should I raise an issue in GitHub?


Hmm … seeing screenshots of the Java app and writing about the embedded HTTP server trigger thoughts of my local installation being significantly outdated. (The Java app shows version 5.2, so I guess I’m missing all of the 2021 releases. My bad. I’ll update.)

Still, it’s remarkable that the feature does work with at least one page (opening post, first shot).


Now I realise, from testing in a different browser without the extension:

  • what’s in the first shot does not require the extension

– it’s simply a demo page.

So, my problem is almost certainly local, I expect to resolve it with an update to the local server.

Apologies for the noise. tl;dr it was the demo page that threw me.

Not resolved with an update to 5.5 so, I guess we’re back to the original question:

The synonym feature doesn’t work when an on-premise server is in use. That’s because the synonym API is not part of the LT API and most users use the on-premise version for privacy reasons. By not supporting this feature for on-premise, we make sure that no requests go to any external services.

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