extension ExtPose


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Description from extension meta

PageSigner - a cryptographically secure webpage screenshot tool

Image from store PageSigner
Description from store PageSigner allows you to "notarize" web pages. Think of it as a cryptographically secure webpage screenshot - it's different from an ordinary screenshot in that it can't be edited in Photoshop; it really proves that you received that data from the server. You can then share that proof with anyone you like. PageSigner is an open-source project. You can see the code here: https://github.com/tlsnotary/pagesigner Changelog. v 3.0.6 - update after a server fix v 3.0.5 - fix for large uploads on slow connections v 3.0.4 - allow to preview the notarization without actually running it v 3.0.3 - a better algorithm which is 30% faster and requires 25% less bandwidth v 3.0.1 - fix notarization errors due to unsynced time on notary's server v 3.0.0 - supports TLSNotary protocol for TLS 1.2+ - request authentication v 2.1.0 - fix sending message to tab too soon before DOM is loaded (esp. on Vivaldi) - allow to import older versions of notarization files - more lightweight pgsg file format v 2.0.1 - don't require management permission - verify imported pgsg's certificates against the time of notarization

Latest reviews

  • (2022-09-29) Saul Proff: Was able to capture a page of reddit. Not all websites produce a useful capture.
  • (2021-12-09) JackD: Good stuff.
  • (2021-03-26) Joseph Spadavecchia: Awesome tech!
  • (2020-10-06) Samuel K.P.: The notarization works much faster now!
  • (2018-02-15) It didn't work for any of the cases where it matters (financial institution sites, messaging app sites). Often, it seems, if there is a login process, the page it notarizes, if any, has little HTML and doesn't correspond to what I see on the screen. I only had it work for simple cases where preferably there is no login or dynamic content - which renders it largely useless.
  • (2016-05-20) Anton Starikov: Keeps saying that it can only sign https pages even when i click it on https pages.

Latest issues

  • (2017-10-05, v:1.1.1) Pelle ten Cate: Bank website notarized as blank page
    I tried to notarize a page from chase.com when I am logged in to my bank account. But the notarized page looks empty. I tried it with both the Chrome and Firefox. Am I doing something wrong, or is there a bug?


302 history
3.8 (8 votes)
Last update / version
2022-03-30 / 3.0.6
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