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The browser and GDM aren't connected

When the browser can't hand a download to GDM, it keeps the download itself, so nothing is lost. The extension's toolbar button then shows a red !. Click it to see what's wrong, then How to fix it brings you to the matching section below.

To check GDM's side, open Options → General in GDM and click Test browser integration.... It checks that browser integration is on, that this is the installed copy, that the browsers can find GDM, and which browsers' extension has connected; How to fix it opens the section for the first that fails.

GDM isn't installed, or browser integration isn't set up

The browser can't find the small helper program it talks to. It is registered when GDM is installed.

  1. Install GDM with the setup from the download page, and keep Set up browser integration ticked.
  2. Already installed? Open GDM, then Options → General → Test browser integration, and click Set it up if it offers to.
  3. La copie portable ne peut pas être connectée : elle n’écrit rien en dehors de son propre dossier. Utilisez la copie installée pour l’intégration du navigateur. Voir Mode portable.
  4. On Linux and macOS, GDM sets browser integration up itself each time it starts: start GDM once. Test browser integration says what went wrong if it couldn't, such as The helper program the browsers start is missing: Set it up puts it back.
  5. Redémarrez le navigateur après la configuration.
  6. Zen, Helium, Brave Origin or another browser built on Firefox or Chromium, as your only browser on Linux or macOS? Older versions of GDM set browser integration up only for the browsers they knew; the current one also knows Brave Origin and the Beta, Dev and Nightly versions of Brave, Chrome and Edge. Update GDM and start it once.
  7. The AppImage on Linux: the AppImage's files are gone once it quits, so GDM keeps a copy of its helper program in its data folder (~/.local/share/misterdownloadmanager/browser-host) and points the browsers there. Start GDM once after moving or renaming the AppImage, or after an AppImage manager (Gear Lever, AppImageLauncher and the like) moved it, so the helper knows where to start it from.
  8. Zen sous Windows : Zen 1.21.15b et les versions ultérieures présentent un défaut qui empêche les extensions d’accéder au programme auxiliaire qu’elles utilisent (zen-browser/desktop#15432). En attendant que Zen corrige ce problème, Zen 1.21.14b fonctionne.

GDM didn't start in time

When GDM isn't running, the browser starts it for each download and waits for it. It waited about 20 seconds this time and gave up.

  • Start GDM yourself and try the download again.
  • A first start, a slow disk, or an antivirus scanning GDM can take that long. Next time it is usually quick.
  • With a VPN or proxy program, allow connections to 127.0.0.1 (your own computer): the browser's helper reaches GDM through one.
  • If GDM never opens, see The setup or GDM won't start.

The connection to GDM failed

The browser started GDM's helper, but it stopped before answering. Security software is the usual cause.

  • Allow misterdownloadmanager-nmhost.exe (in GDM's folder) in your antivirus or anti-malware program.
  • Reinstall GDM to restore its files.
  • Sous Linux, si Firefox ou Chromium est installé en tant que Snap, consultez Navigateurs Flatpak et Snap.
  • Uninstalled GDM on Linux? The .deb and .rpm take their browser files with them; the AppImage's and the tar.gz's stay in your home folder: remove them, and the extension too.

GDM doesn't accept this copy of the extension

GDM's helper serves only its own extension. The browser says this copy isn't one it knows.

  • GDM 0.2.x with the extension from the Chrome Web Store? The store's copy needs a newer GDM: 0.2.x knows only the copy in its own folder. Update GDM with Help → Check for updates.... Until then, remove the store's copy and load the one in GDM's folder instead (extension\chromium, see Browser integration).
  • Two copies installed? Open the browser's extensions page (chrome://extensions, edge://extensions, brave://extensions) and keep only one GolinksPRO Download Manager.
  • A copy from elsewhere? Remove it and add the extension as GDM's Add GolinksPRO Download Manager to your browser window shows (see Browser integration).
  • An older GDM? Update GDM: a newer extension may have an ID an old helper doesn't know.

The extension is newer than GDM

Downloads still work, but some of the extension's features need a newer GDM. Update it with Help → Check for updates... in GDM.

If GDM says it's up to date, there's nothing for you to do. The extension updates by itself through its store and can get ahead of the app for a while. Everything keeps working, and the message goes away with the next version of GDM.

Les détails d’un téléchargement étaient trop volumineux

A download carries its site's cookies (and a form's data) to GDM. A few sites set so many that together they exceed what GDM accepts from the browser (1 MB). The browser kept this one. Signing out and back in to the site usually trims them.

Downloads stay with the browser although GDM is connected

The extension is connected, but GDM's own settings leave this download to the browser. Check, in GDM:

  1. Options → Général → Utiliser l’intégration avancée du navigateur est activé, et votre navigateur est coché dans Capturer les téléchargements des navigateurs suivants.
  2. Le type de fichier est listé dans Options → Types de fichiers.
  3. Le site ne figure pas dans Ne pas démarrer automatiquement le téléchargement depuis les sites suivants, et l’adresse ne figure pas dans Ne pas démarrer automatiquement le téléchargement depuis les adresses suivantes.
  4. Le fichier n’est pas plus petit que Ne pas prendre les fichiers plus petits que dans Options → Types de fichiers.

Vérifiez aussi le bouton de l’extension dans la barre d’outils : si Prendre les téléchargements de ce navigateur est désactivé, tous les téléchargements restent dans le navigateur.

Le navigateur ouvre les PDF et les fichiers musicaux au lieu de les transmettre

GDM also takes the file types the browser would show or play itself (a PDF, an MP3), when they're listed in Options → File types and Also take files the browser would open is ticked in Options → General → Keys.... This needs a Chromium browser (Chrome, Edge, Brave, Opera, Vivaldi) version 128 or later, or Firefox. Sites in GDM's excluded sites keep opening them in the browser. Hold Alt while clicking a link to leave it to the browser: Firefox then opens it, while Chromium browsers download it themselves (Alt+click is their own "download link").

Pas de bouton Télécharger la vidéo sur YouTube dans Chrome, Edge ou Brave

La version de l'extension du Chrome Web Store n'affichait pas de bouton Télécharger la vidéo sur YouTube avant la version 0.5.1. À partir de la version 0.5.1, il est affiché. Votre navigateur met à jour les extensions automatiquement ; pour l'obtenir plus tôt, ouvrez sa page d'extensions et mettez-les à jour à cet endroit.

You can always save a video without the button: in GDM, open Tasks → Download video from a page and paste the video's address.

L’extension ne peut pas accéder à ce site

In Chrome, Edge and Brave you can limit an extension to some sites (right-click its toolbar button → This can read and change site data). On a site it may not read, the extension can't pass your sign-in on, so it leaves the download to the browser. Choose On all sites to let GDM take downloads everywhere.

Firefox oublie l’extension après un redémarrage

Un module complémentaire chargé avec Charger un module complémentaire temporaire (depuis about:debugging) est supprimé à la fermeture de Firefox. Supprimez-le et installez plutôt le module complémentaire depuis sa page sur addons.mozilla.org : Firefox le conservera et le mettra à jour.

Linux : navigateurs Flatpak et Snap

Browsers installed as a Flatpak or a Snap run in a sandbox, which decides whether they can reach GDM.

  • Firefox as a Snap (Ubuntu's own Firefox) reaches GDM through the desktop, which reads the browser files in your home folder and those the .deb or .rpm installs for everyone. The first time the extension calls GDM, the desktop asks Allow Firefox to start WebExtension backend? for GolinksPRO Download Manager: choose Allow. After Don't allow, the extension says the connection failed and the desktop doesn't ask again; to be asked again, run this in a terminal, then use the extension again:

gdbus call --session --dest org.freedesktop.impl.portal.PermissionStore --object-path /org/freedesktop/impl/portal/PermissionStore --method org.freedesktop.impl.portal.PermissionStore.Delete webextensions com.misterdownloadmanager.host - Chromium as a Snap (Ubuntu's Chromium) starts GDM's helper inside its sandbox, where it can't reach GDM, so GDM doesn't list it in Add GolinksPRO Download Manager to your browser. Use Firefox, or Google Chrome from its own .deb. - Flatpak browsers (such as Zen's app.zen_browser.zen) can't start GDM's helper, so GDM doesn't list them either. Install the browser from your distribution's packages (or the browser maker's own .deb, .rpm, tarball or AppImage) to use browser integration.

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