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Search setup, subtitles, browser permissions, billing, and privacy guidance for Langvue.

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The quickest routes into the support library.

6 frequently used articles

Getting StartedHow to install the extension Getting StartedHow to start translation TroubleshootingNo subtitles are showing TroubleshootingAudio is not detected BillingHow free trial works Privacy and DataIs audio stored?

Getting Started

Install the extension and begin translating browser media.

How to install the extensionInstall Langvue from the official browser extension listing.How to start translationStart translated subtitles on a supported browser video or audio page.How to choose source and target languagesSelect the spoken language and translated subtitle language.

Troubleshooting

Fix common subtitle, audio detection, and delay issues.

No subtitles are showingCheck media playback, permissions, language selection, and site access.Audio is not detectedReview browser permissions and media compatibility when audio is unavailable.Translation is delayedUnderstand why translated subtitles can appear a little behind speech.

Billing

Understand the free trial and subscription cancellation flow.

How free trial worksLearn how the limited free trial and usage tracking work.How to cancel subscriptionUnderstand how subscription cancellation should work.

Privacy and Data

Learn how audio and browsing data should be handled.

Is audio stored?Review the intended audio-processing privacy position.

Still need help?

Contact support for installation, subtitle, billing, or privacy questions. Include your browser, media page type, source language, and target language so support can investigate faster.

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