2.9.14: Fixed page-word meaning lookup (including Korean words): opening a meaning now performs a real lookup, shows an error and retry when the translation service is unavailable, and loads visible words with bounded concurrency. Expanded the PDF reader note editor into a long, borderless writing area that grows with the content.

Firefox compatibility release: native sidebar and local speech support. Replaced inherited DOCX, spreadsheet and PDF parsing bundles with pinned official dependencies and a reproducible source build. Local learning data, account login and cloud sync behavior are preserved.