Migaku currently supports YouTube on desktop Chrome, and missing native YouTube captions are not automatically the cause because Migaku says its YouTube workflow can fetch or generate subtitles.
If you have already reloaded YouTube six times and stared at Chrome’s puzzle-piece icon like it owes you money, stop changing things for a minute. Get three green lights instead: Chrome can run Migaku, Migaku attaches to the video, and the subtitle layer actually produces usable text.
Get these three green lights before you reinstall anything
| Light | Visible pass | If it fails |
|---|---|---|
| Browser | Migaku is enabled in Chrome and has usable access to YouTube. | Fix the extension state or site-access setting first. |
| Migaku | Migaku’s documented YouTube flow produces its video-study interface. | Stay with browser/extension attachment. Do not blame captions yet. |
| Subtitles | Migaku has usable subtitle text and subtitle controls on a normal test video. | Compare another video before changing the whole extension setup. |
Use Google Chrome for this baseline test. Migaku says its desktop extension was specifically designed for Chrome; some Chromium browsers such as Brave or Arc may work, but Migaku does not officially support them. See Migaku’s current installation guide.
Green light 1: is Migaku enabled and allowed to run on YouTube?
If ordinary YouTube works but Migaku has vanished, start one layer above the video. Chrome can keep an extension installed while it is turned off, and it can limit when that extension may read and change site data.
- Open Chrome’s Extensions menu and choose Manage extensions.
- Find Migaku and confirm that the extension is turned on.
- Open its details and inspect its site-access setting.
- If you intentionally use limited access, make sure Migaku has access to YouTube for the session you are testing.
- Return to YouTube only after that browser state is clear.
Chrome currently offers extension access modes such as access only when you select the extension, access on a specific site, or access on all sites. If access is set to when selected, Google says the permission applies to the current site in that open tab or window; after you close it, you need to select the extension again. See Google’s current extension-management instructions.
That does not prove site access caused your Migaku problem. It gives you something better: a visible browser condition you can either pass or fail.
Browser light green? Good. Stop touching Chrome settings. The next question is whether Migaku actually reaches the video.
If you are on Brave, Arc, or another Chromium browser, reproduce the problem in Chrome
“It runs Chromium” and “Migaku officially supports it” are not the same sentence.
Migaku’s installation guide says Chrome is the supported desktop baseline and notes that some Chromium-based browsers may work without being officially supported. Migaku’s FAQ likewise says its Browser Extension has been specifically designed for Google Chrome. See Migaku’s current browser and platform FAQ.
You do not have to permanently abandon your preferred browser. But if Migaku fails in Brave and works in current Chrome with the same account and video, you have learned far more than you would from reinstalling the extension three times in Brave.
Green light 2: use Migaku’s documented YouTube route
Now establish a supported baseline instead of testing whichever route happened to be open when the problem started.
Migaku’s current YouTube instructions describe this flow: open Migaku, select YouTube, choose a video, then select Watch With Migaku. Migaku says it will fetch the video’s subtitles or generate them if none are available, then make the text interactive. See Migaku’s current YouTube workflow.
Use a normal speech-heavy video for this check. You are not trying to prove that your difficult original video works yet. You are asking a simpler question: can Migaku attach to a supported YouTube viewing session at all?
When it is operating normally, Migaku documents a toolbar on supported video sites such as YouTube with subtitle and audio-related study controls. See Migaku’s video-toolbar documentation.
If that interface never appears even after the Browser light passed and you reproduced the issue in Chrome, you still have an attachment/extension problem. The subtitle track is not yet the useful suspect.
Green light 3: does Migaku have usable subtitle text?
This is where a common diagnosis goes wrong: “YouTube has no CC button, therefore Migaku cannot work.”
Migaku itself says its YouTube flow can fetch existing subtitles or generate them if none are available. So native YouTube captions are useful evidence, but they are not a universal prerequisite according to Migaku’s current product documentation.
Once Migaku has attached, use its subtitle-oriented controls as the observable check. Migaku currently documents controls for moving to the previous or next subtitle, replaying the current subtitle line, opening the subtitle browser, hiding subtitles, and copying the current subtitle. See Migaku’s current video controls.
If those controls have usable text on one normal test video, the Browser and Migaku lights are green. Now you can investigate the original video without dragging the entire extension back into court.
One video fails? Run a known-good-video comparison
Pick two videos: the one giving you trouble and a second video with clear, continuous speech in the language you are studying. Keep the same Chrome profile, Migaku extension state, and site-access settings.
| Result | What it suggests | What to do next |
|---|---|---|
| Migaku subtitle tools fail on both videos | The problem is broader than one video. | Stay with the Migaku/subtitle surface and reproduce it in the documented Chrome flow before escalating. |
| The test video works; the original does not | The extension can work in the same browser state, so video/subtitle conditions deserve attention. | Keep Chrome and extension settings frozen; compare the video itself instead. |
| Native YouTube captions are missing but Migaku still produces text | This matches Migaku’s documented ability to generate subtitles. | Do not use the native CC button as your only health check. |
| Both native and generated text are poor on difficult audio | The audio/language conditions may be hard for automated transcription. | Try clearer material before diagnosing the extension globally. |
YouTube says its own automatic captions are not guaranteed for every video and can be delayed, unavailable, or inaccurate because of factors including unsupported language, long or complex video, poor sound, a long silent opening, overlapping speakers, or multiple languages. It also warns that accents, dialects, mispronunciations, and background noise can affect transcription quality. See YouTube’s automatic-caption guidance.
That does not prove Migaku uses YouTube’s automatic-caption pipeline when it generates text. It simply tells you not to treat difficult speech as a clean diagnostic video.
Which light is dark? Use only that repair path
The whole point of the three-light check is to avoid turning one broken surface into a full-browser renovation.
Migaku is installed but disabled, or Chrome access looks restricted
Dark light: Browser. Turn Migaku on in Chrome. Then inspect extension site access and grant the level of YouTube access you actually intend to use. Reload the test session after the permission state is clear. If Chrome marks the extension as corrupted, Chrome’s own management page provides a Repair action.
Do not change yet: subtitle settings, dictionaries, or the original YouTube video. You have not proved Migaku can participate on the page.
Migaku is enabled, but its video interface never appears
Dark light: Migaku attachment. Reproduce the failure in Google Chrome and use Migaku’s documented YouTube → Watch With Migaku route on a normal video. If it still does not attach while Chrome is clearly allowing the extension to run, you now have a clean reproduction to take to Migaku support.
Do not change yet: YouTube caption languages. An interface that never attached cannot be diagnosed by editing subtitle choices.
Migaku appears, but its subtitle tools are empty or unusable
Dark light: Subtitle surface. Keep the working browser and attachment settings unchanged. Compare a clear second video. Remember that a missing native YouTube CC track is not decisive because Migaku says it can generate subtitles; the meaningful check is whether Migaku gets usable text on known-good content.
Do not change yet: the extension installation if the same installation successfully attaches to the page.
Migaku works on another YouTube video but not this one
Two lights are already green. The same Chrome/Migaku setup can function, so preserve it. Compare the failing video’s speech clarity, language mix, and subtitle availability rather than resetting a setup that just passed elsewhere.
This is not proof that the video is “bad” or that Migaku can never process it. It is a stopping rule against unnecessary global troubleshooting.
Do a 60-second end-to-end proof before you call it fixed
A toolbar that merely exists is better than no toolbar, but your actual job is language study. Use one short section of a working video and verify the workflow you came for.
If the first two pass but the final subtitle-dependent action fails, do not return to Browser Light. Chrome is green; stop touching Chrome. Continue only from the surface that is still dark.
Once your technical setup is working again, the broader question is how to turn video into repeatable practice rather than just accumulate tools. The media-based language learning guide covers that larger workflow.
Sources
Make “Migaku is broken” smaller
You do not need twenty fixes. You need the first dark light.
If Chrome cannot run Migaku on YouTube, fix the Browser light. If Chrome is fine but Migaku never attaches, stay with the Migaku light. If the interface appears but usable text does not, freeze the working browser settings and investigate the Subtitle light with a known-good video.
Once you know which light is dark, troubleshooting becomes boring again—which is exactly what you want when you opened YouTube to learn a language, not adopt an extension as a weekend renovation project.