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Harald Kirschner 🔥🦊🛠 @digitarald Global Citizen in California

❤️ Open Web • Product Manager @FirefoxDevtools / DX / Performance • Husband & Dad • 🏳️‍🌈 👋🏻 DMs are open

736 Following   2,235 Followers   3,133 Tweets

Joined Twitter 4/25/08


@MiriSuzanne WebRTC sites are a hotspot. Firefox stayed on top of the latest living spec while Chrome lagged behind… https://t.co/AO28YfmZAN @MiriSuzanne They do some in many varieties - plain blocking is definitely the worst but the warnings can be annoyi… https://t.co/j0xrPOe3NI @MiriSuzanne Since I love to keep track of that number, please help us by filing an issue on… https://t.co/F3HK2d4q3s
4/10
2020
@magicroundabout @raisonco Firefox dev here. We are working on making sure that blocked requests show up at least,… https://t.co/tm72Dzo4PQ
4/9
2020
@abobi_wida @Only1Camp Have you tried it lately? @RIanDeLaCruz10 @firefox Have you tried switching off hardware acceleration in the settings?Firefox 75 is out & it has a slew of new features, including: 🥱Image lazy loading 🗜️CSS min(), max() & clamp() ⏯Web… https://t.co/rYgbm1Vobg
Retweeted by Harald Kirschner 🔥🦊🛠 @mynetdesigner @FirefoxDevTools That would be https://t.co/sOUd1Qvywg , which I just nudged. @mynetdesigner @FirefoxDevTools We have a few issues open around that and I have been pushing. Let me make sure its… https://t.co/DxuOd8chfp @chrisdavidmills @simonw @aboodman That would be a great blog post for JS geeks. https://t.co/CpJ5nJXjEg sums it up… https://t.co/BRMrloePpS @CyberAnonymous @DimitarVel @FirefoxDevTools Firefox dev here: When it’s slow, could you record a performance profi… https://t.co/hydL86IIYLOh I REALLY like instant evaluation. Firefox shows you the result of side-effect free statements live in the consol… https://t.co/joB4pgFMgN
Retweeted by Harald Kirschner 🔥🦊🛠
4/8
2020
Firefox 7⃣5⃣ has landed and is chock full of handy new dev tooling! 🔎: Instant evaluation in the Web Console 💬:… https://t.co/pnEK8mPtwl
Retweeted by Harald Kirschner 🔥🦊🛠
4/7
2020
@AndyDavies Seems like it’s useful for all responses that were cached, missed cache because (including why) and got… https://t.co/NdpK6uYgMK
4/5
2020
@__jakub_g @mnot Looks great, I was hoping to find existing devops tools. Looks like it has several aspects of netw… https://t.co/X8hi104zQH @AndyDavies Where would you look for that I formation in DevTools?HTTP Caching is hard and apart from DevTools telling you which requests got served from cache there could be more i… https://t.co/MZLqQ4kXfI
4/4
2020
In case you are also missing outdoor time while we all #optInside. https://t.co/pN08czg4pYHugs to Twitter engineering who had to deal with their security incident. Frowns at Twitter comms for phrasing thi… https://t.co/8SYjc0sq13
Retweeted by Harald Kirschner 🔥🦊🛠 @patrickbrosset Thanks for everything. I'll be reminded of your impact every day when I open DevTools, or while bro… https://t.co/YQiU8LyXba
4/3
2020
@SamHulick Hi Sam. The official bugzilla link seems to be https://t.co/4eNUboMahU. If you want to file it for the… https://t.co/WVH0IcGbmh
3/31
2020
@brian_d_vaughn @ryan_castner Firefox Profiler could also import React's profiles. It can already read Linux perf a… https://t.co/ueZ8L2iRZb
3/30
2020
@jasonlaster11 @acemarke @dan_abramov On it, I reached out through the usual channels. Thanks from me as well for i… https://t.co/P0DyLkt1x2This HTTP 203 excerpt is the story of countless webcompat/interop bugs. @DasSurma @jaffathecake talk about the hig… https://t.co/ZruDq637oJ
3/26
2020
@seldo Nicely laid out survey, Laurie. Working on Firefox/DevTools, I'd be especially curious to see how people res… https://t.co/0ZHhfyS87U
3/25
2020
@paul_irish @simevidas @cjamcl Same here. @simevidas, does the extension work when the checkbox isn't set? Could y… https://t.co/wiUv1kyU7SMozilla #remoteworking tips from years of remote community engagement: https://t.co/1aldWjN44V 📓 Collaborative no… https://t.co/0eIaXssLIeRemember, we’re all in this together. Check in on one another, stay connected and when you need a little pick me up… https://t.co/1hOhBJ2LBB
Retweeted by Harald Kirschner 🔥🦊🛠
3/20
2020
@Wellington_Tds @kylealden @MSEdgeDev @FirefoxNightly @FirefoxDevTools Which OS? @Wellington_Tds @kylealden @MSEdgeDev @FirefoxNightly @FirefoxDevTools Accelerated scrolling via scrollbar landed i… https://t.co/9crKWXya9p @_mandaputtra @FirefoxDevTools Filed as https://t.co/PCmhWy2FXH . Let's see if we can add more details to make this a good first bug.
3/19
2020
@CesarPalafox So tests use a new Firefox profile and you run into the prompt repeatedly? @CesarPalafox That is good feedback, thank you. We actually have been heads down on this and it turned out fantasti… https://t.co/SRAX02CluZ @CesarPalafox That should only trigger once, so you should not see it again. @_mandaputtra @FirefoxDevTools You mean right-click on Console's network logs and get the same menu as in Network panel? @maxlynch It's on the radar. I wonder if it would help a lot with finding esoteric features as you have to know the… https://t.co/OBwtTXSrFv @CesarPalafox Firefox dev here. If you like to share, are there any specific issues in the DevTools that caused frustration?
3/18
2020
Tips for working remote: https://t.co/V1XdLLU7mm Compiled from Mozilla's "remotees" (aka the #awayteam), who make… https://t.co/LV1JB8LE4B @mattrmay @tangoCodes @firefox @googlechrome Firefox dev here. Which specific tools are giving you trouble? We usua… https://t.co/A0nu9K2aLJ
3/16
2020
Great to see that Chrome is following our lead here and making a similar feature available to their users. Together… https://t.co/8UHCi9uhgn
Retweeted by Harald Kirschner 🔥🦊🛠 @Wellington_Tds @sebduggan @rem @webhintio We have been working with webhint on the extension:… https://t.co/ZB7UMCoOLS @rem Getting there … just slower as promised 😅. It is already mostly enabled in Nightly (SW debugging in Debugger… https://t.co/RmR3E5lOY4
3/10
2020
@jimblandy @MarijnJH @loganfsmyth @FirefoxDevTools Getting back to pause on unresponsive code. I make sure it’s in… https://t.co/rfMa7rbh10 @lxt And something else starts! Good riddance 🥂
3/7
2020
@Wellington_Tds @katiehempenius @jaffathecake @FirefoxNightly @FirefoxDevTools I assume you know Firefox has this (… https://t.co/TyBRRyksTu @maxlynch @davidwalshblog Yes, but behind pref. You'll need to enable it in about:config `devtools.inspector.color-… https://t.co/YbrRhAfAL3This has been such a fantastic read, thanks to @jimblandy's prose. Just in case you want more of this and want to… https://t.co/CvZartU3sf
3/6
2020
@supersole @FirefoxDevTools Weeee should fix that. Thanks for filing bugs, dear beloved user!🦊 JS Debugger 🤝 SpiderMonkey @jimblandy and @digitarald on The Implementation of the SpiderMonkey Debugger (and i… https://t.co/h65D9d6vMT
Retweeted by Harald Kirschner 🔥🦊🛠Want to improve your HTML skills, with the latest in best practices? I’ve got you covered: https://t.co/bOfp6F6I0v
Retweeted by Harald Kirschner 🔥🦊🛠
3/5
2020
@MicrosoftTeams #AllBrowsersWelcome would be fantastic. Any insights when video calls will work in Firefox and Safa… https://t.co/PSsp7nHtuM
3/4
2020
@jrdevforlife @syntaxfm @FirefoxDevTools Is that the rules panel in Inspector, while an element is selected and HMR replaces CSS? @HansOnConsult @FirefoxDevTools The team is actually on it. Support is experimental because there are a lot of prot… https://t.co/5IgR7lhT8uIf you write CSS and aren't using Firefox as your dev browser, you're making your own life more difficult than it h… https://t.co/yMveiPtjxc
Retweeted by Harald Kirschner 🔥🦊🛠
3/2
2020
@JacksonBates So it was re-throwing an error from their API, I guess. Let me check the gapi client then; that should be reproducible.
2/29
2020
@JacksonBates Firefox dev here. Was that error coming from a specific framework?
2/28
2020
@hdjirdeh @cjamcl Yay! This screenshots makes we wish the popup would support dark mode. @NiceYannick @FirefoxDevTools That sounds like a useful no-effect warning for sure. cc @patrickbrosset If you fee… https://t.co/Fy9jeUoyMj @vinc3r @FirefoxDevTools That should get better with instant eval. What you want is maybe something like a "Always… https://t.co/kMhJ3Y1yiA
2/27
2020
@googleearth I assume updating the system requirements and removing "experimental version" is part of the "polishin… https://t.co/kiu0Nwp2U1Congrats @googleearth on launching your WASM-powered experience to more browsers! https://t.co/Nnm31rYAjZ https://t.co/18y3baAZyp @keithclarkcouk Maybe we can expose https://t.co/KStvk5fxKE in an npm package. https://t.co/yeNZL1XGZq should make… https://t.co/fCajLMtGiS @ChromiumDev Kudos to the team, especially @cjamcl. So excited to have Lighthouse's actionable performance, a11y &… https://t.co/j48X6w8AjP @paul_irish @simevidas @ChromiumDev @cjamcl Let me know if you need any help with workarounds. @keithclarkcouk Nice. We (Firefox) have been trying to translate some DevTools' small space UI elements into the Ph… https://t.co/LHcFq1FPcU @robMerriMath @FirefoxDevTools @ChromeDevTools What's the problem space here? Is this a devtool, a remote tool or a… https://t.co/cylpSkyMFC @NickGottschlich @ChromeDevTools @FirefoxDevTools So, lines extend downwards in Firefox – but is the tooltip gettin… https://t.co/2n0lDnKFa8 @EdgeDevTools @Th3S4mur41 @FirefoxDevTools Is there a place where I could follow that bug or feature request? @cjamcl Thank you!
2/26
2020
Our next #AMA is coming up on March 4th at 9 am PT on the OpenJS YouTube Stream! Don’t miss your chance to catch up… https://t.co/Sfh8z1DTJ5
Retweeted by Harald Kirschner 🔥🦊🛠 @iamsapegin aXe Firefox Extension: https://t.co/PpVoM7g8Ex @robMerriMath Have you tried multi-line editor mode in Firefox's Console – which gives IDE-like environment and all… https://t.co/5NkLPJbG3w @inputforcolor @traversymedia @Bushblade @FirefoxDevTools @mozilla Thank you. We are usually also fielding question… https://t.co/cRmohxdhzs
2/25
2020
@etoxin @ChromeDevTools @FirefoxDevTools Like https://t.co/ocEvU901LZ You should also check out Logpoints, for log… https://t.co/Lxjuci9q1U @addyosmani @_developit Nice way of combining snippets and live demo in one "screenshot". Looks like a lot of work, but a great result. @inputforcolor @traversymedia @Bushblade @FirefoxDevTools @mozilla Firefox dev here. I've been trying to triage cac… https://t.co/2PYROg3WwR @g16n @FirefoxDevTools Ha, some of those actually came up with Console's new instant evaluation some inconsistencie… https://t.co/FdxevtMf90
2/24
2020
@miketaylr Needs more Battery API.For context, the screenshot with the form controls (since Twitter didn't inline the article). https://t.co/xsUvLXvLyy @stolinski @wesbos Have you checked about:performance, which shows memory and CPU consumption per tab/extension? I… https://t.co/eVlphHXHtpThe future meets the evergreen past. WASM-based Acrobat PDF viewer https://t.co/0nTVS5d8p1 . Curious to see what t… https://t.co/ynB566L8Nb @stolinski @wesbos So mostly memory issues? Is that with DevTools open (then I can take all the blame), or just browsing?
2/21
2020
Whatever browser, framework, stack, syntax, etc you prefer … Please give us ~3 minutes of your time for this DevTo… https://t.co/XtlN40J5Ew @GDebongnie Successful performance sprint, congrats! The missing canvas call must have been a challenge to find. A… https://t.co/f4PMFa5f8P @GDebongnie Oh, are you using https://t.co/kLtxAc9toO? I work on that 😁. I'd be curious on where you heard about and what you use it for.
2/19
2020
@html5test I have to double-check, but the latest Firefox for those OSs should be more modern than Chrome 49.
2/18
2020
@paul_irish @BrowserNative @cjamcl This warning will go away after review - will keep you posted.
2/16
2020
@bz_moz @heycam We'll pull the right people into https://t.co/O257qA1yiJ to finalize the design and discuss implementation. @bz_moz @heycam Having both error and API linked would be best. Console has a few more tricks up its sleeve to crea… https://t.co/KC6jHY40CX
2/14
2020
New in Firefox 73: 🔎 persistent zoom level setting across sites (!) 🔒 NextDNS as alternative DNS-over-HTTPS provide… https://t.co/PnkqJwADkC
Retweeted by Harald Kirschner 🔥🦊🛠 @snmcp @FirefoxDevTools @ChromeDevTools In case you need material for ideas, we used this in 2hr workshops and its… https://t.co/BQwb18CRc6 @cwardphotos Thank you. Sharing those rabbit holes with the community has helped us a lot, in nailing down details… https://t.co/im7X6ajkzWThank you, everybody, for the input, there is definitely work to do here! The discussion will continue in… https://t.co/ut9NfJO8Xm @dmgr_ Firefox dev here. It is great to hear that Firefox generally works better, especially on sites like Youtube!… https://t.co/I7eecJAuvy
2/13
2020
@petermllrr @wesbos Thanks for jumping into the UX challenge! None of the other apps (Finder, File Explorer, Googl… https://t.co/aN03P46yXRAdditional challenge: All DevTools panels right now are responsive in nature, so they can be docked in narrow and w… https://t.co/9OspXRZFoX @ohearn @FirefoxDevTools If its not compat mode we gotta keep digging 😓. Thanks a lot for your help so far – especi… https://t.co/5zRMdMwkpN @uninen @fvsch @FirefoxDevTools Having no constraints around sizing is definitely good. Is there a specific use ca… https://t.co/dNCNX3gjC4 @uninen @fvsch @FirefoxDevTools Neat. It seems a bit wasteful to be able to resize smaller than the horizontal widt… https://t.co/OArDCFSNr6 @ohearn @FirefoxDevTools It looks like that is https://t.co/PKX5D5A59R and we are on it! Can you check which compa… https://t.co/NBVZ4dABTG
2/12
2020

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