Maximiliano FirtmanVerified account

@firt

mobile+web+pwa+performance author+speaker+trainer. Author of Hacking Web Performance from O'Reilly | | En español:

Usually on a Plane
Joined November 2008

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  1. Pinned Tweet

    ¿Hablas español? Follow me also at I'll tweet local/regional/in Spanish. A fail: can't target tweets to subgroups here

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  2. Hacking a mapping service, hacking the physical connected world

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  3. I think the problem is mostly the same on iPhone and Android devices. Apps can use the web view (bad) or Android Custom Tabs / Safari View Controller where this problem doesn't exist while still looking like an in app browser.

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  4. The new version of PWA Builder is out. —New Web Components —PWA Launcher Packaging now includes 1) a ready-to-PlayStore launcher APK, 2) macOS build, 3) Windows 10 package and a nice mention to Samsung Galaxy Apps distribution. Packaging for iOS was removed as announced.

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  5. It’s 2020 and there are still some apps not validating email addresses on account registration. This morning someone with name Funke registered an account, took a trip in Nigeria, and didn't pay it using my email address with Funke, pay your bills!

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  6. Jan 25

    Amazing tribute to the innovation of the Internet Explorer team, authored by the fantastic . IE4-6 introduced a tremendous amount of features, admittedly non-standard, but still truly impressive.

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  7. Jan 16

    Chromium-based Edge stable is now on the Windows WebPageTest agents in Dulles (in addition to Dev and Canary which were there already). All of the Chrome features should work for Edge as well.

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  8. Replying to

    This is a new talk I’m preparing for I’m gathering lot of interesting data and experiences for it 😀

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  9. Jan 15

    This font for code is cool, but its website is definitely amazing:

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  10. User-Agent, Client-Hints and the Future of Device Detection, ⁦⁩ vision on the user-agent freezing scenario.

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  11. Jan 15

    Here's highlights from today's curation 1. , who writes a lot of awesome stuff on PWAs, wrote about Progressive Web Apps in 2020

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  12. The new Microsoft Edge is now available for Windows 7, 8, 8.1, 10, and macOS. Android and iOS versions are also available but despite the new logo I'm not sure if they have anything new.

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  13. Today is day: The new Chromium-based Edge goes live. Time to repost this thread on Microsoft Browsers User Agent history. At the end, Microsoft will probable follow Chrome by freezing the User Agent later this year.

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  14. I'm glad Edge is working with something that Chrome has decided to not use at all. We can discuss how useful the touchbar is, but with Google Chrome it's even less useful.

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  15. It's a PWA created by a web app generator, so I guess the problem is on the template, not an actual restaurant responsibility. Even they are promoting installation though banners, but it's not technical a PWA. (And it's quite slow 😒)

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  16. "Add us to your home screen" I'm always wondering how many users actually understand what that means. But it's good to see PWAs used where they belong! BTW, the actual URL of the restaurant has a service worker but no manifest. Check it at

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  17. Docs are technically accurate but not clear enough for web developers. Anyway, I'm glad the tools are getting better. Android-browser-library simplifies the development of PWA launchers for the Google Play Store (as well as for other use cases) with Android Studio.

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  18. Jan 14

    Chrome plans to phase out support for third-party cookies. "Our intention is to do this within two years."

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  19. The User-Agent string will be replaced by User Agent Client Hints spec This will probably affect analytics such as Google Analytics and . I guess it will affect at some point device libraries such as WURFL from

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  20. Good bye User-Agent string 👋 Chromium will deprecated it, freezing browser and OS version in July (83). During September (85), it will freeze and unify mobile hardware info with a still-to-be-developed device categorization to reduce compatibility issues

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  21. Jan 12

    me acabo de enterar que en venden torrents de juegos, posta, torrents, no sólo ML deja que usen su plataforma así, además tienen puntuaciones impecables y a vos te la bajan por llevar "tarde" algo al correo 🤷‍♂️

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