Cannot preview PDF's on 9 out of 10 websites... forces a download by default




When I try to click a link that should display a PDF file, in probably 9 out of 10 instances, it will default to a “save as” dialog and force download. It will not preview in the browser itself, as I would expect. Kind of a fundamental function of the browser, I would think. The same links will preview fine in Chrome or Edge.

I just searched PDF link to find some examples. The first link below works properly, as I would expect. It previews within the Brave browser.

This next link is the more common result. It will not preview and will open up a download save-as dialog box.

I am using Windows 10 and experience this exact issue on three different Win10 machines using the current build Brave browser.



Hi @erikpsc,

Can you share your Brave version? Menu > About Brave.



Brave: 0.25.2
V8: 6.9.427.23
rev: 8ea2a9ce5ca329478186e6393e07f1cf87d34a22
Muon: 8.1.8
OS Release: 10.0.17134
Update Channel: Release
OS Architecture: x64
OS Platform: Microsoft Windows
Node.js: 7.9.0
Brave Sync: v1.4.2
libchromiumcontent: 69.0.3497.100


Hi @erikpsc,
Apologies for late response.

Likely you’re using the soon-will-be-replaced Brave (muon). And it’s a known common issue for this version of Brave.

Brave is in migration process to new architecture. And unfortunately, this version will no longer receive a bug fixes, etc. Since this version will be replaced by the new Brave (0.56.x and higher).

Upgrade for the current user to the new Brave (brave-core) is coming in weeks. Or if you want to install it manually, you can download the new version from

You can run it in parallel then you can import your data from prev. Brave.



This topic was automatically closed after 30 days. New replies are no longer allowed.