It might then comply with me as I have a look at a wikipedia page linked from the comments, and any subsequent pages linked from there. Oh, why did you block the flexibility to set text-decoration, opacity and cursor for the visited links? They cannot transfer any elements on the web page, and the values for these properties, that get despatched to the site – we could spoof them so the positioning myfreeams won’t know whether or not we had visited any hyperlinks on that site earlier than. Anyway, I discover one property of the «limit CSS properties of visited links to color etc.» very sketchy, particularly that it abruptly becomes a _security-critical behaviour_ that colour not affect size or other properties of links.
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It’s a smart assumption, to make sure, however I could certainly imagine some model of some OS breaking it. Maybe, for instance, the antialiaser exhibits some refined dependency from colour to dimension, characters of a more contrasting colour having a tiny tiny subpixel difference in width — voila, safety hole. It’s not really a bug in Firefox it’s a bug within the HTML spec that should be closed but in the meanwhile this QAD solution works simply fine.
I’m going to connect a sequence of patches that I consider repair this bug. Once you have accomplished that, you’ll be able to go on implementing some fancy same-origin-policy method, SafeHistory, SafeCache, no matter. What I see from the person perspective is a critical, severe privacy problem.
- Both unvisited.png and visited.png get loaded from the online on the same time , but the show code only accesses one of them.
- I imply, currently we do a _full_ history lookup for EVERY hyperlink within the page.
- I was most impressed with the convenience of use, the seamless and straightforward integration ManyCam provides my Foundation.
- In different words, commerce some design prospects for privateness, whereas maintaining the full performance of exhibiting visited links.
But then if the reads of individual pixels effect rendering you get a recursive problem and it might take an enormous amount of resources to fully render. With retail POS additionally now supported, CCBill can adequately cowl a enterprise that makes gross sales each on- and offline. In that episode of The Lucy Show the place Lucy and Vivian go to the picture current to see Alain Resnais’ Last Year at Marienbad and set off a craze for Deconstruction all throughout America 1962.
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Leaking a couple of bits slowly can leak enough over time to compromise delicate secrets. It should be the default, despite the very fact that it breaks the spec, as a result of folks shouldn’t have their privacy violated except they agree, even when a specification says they want to. If I am on an net site A and I click on a hyperlink to another web site B, it will be good if any hyperlink to B can be seen as «visited» by A. What do you suppose about restrict the visibility of «visited» for a site A to different domains that were visited having A as referer? I think it is a bit higher that simply proscribing it to same domain. Last time I checked, Places lookups weren’t the fastest thing on earth.
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Optimistically marking this bug as fastened, although I already know of some followup bugs that have to be filed. It’s not imagined to work, since that’s a change within the alpha part of the color. If you believe there is a bug, could you file it as a separate bug report.
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This can be useful to reposition a CSS sprite picture depending on the visited state. E.g. make the color of an ornamental «arrow» image match the textual content color. Safari does not run no script, has it is personal issues, would not assist a lot of plug-ins. TenFourFox has its personal share of compatibility issues (but in fairness, with google dropping offline mail, the largest is going away.) Etc. NO, I don’t want websites to have the power to play with visited standing — I can simply think about online stores seeing what I’m buying from their competitors and utilizing that as commercial monitoring. Perf distinction may be triggered solely by adjustments in component’s positioning, and text-decoration can affect it nohow.
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If the page reads the construction, or does some rendering that depends on visited state, the actual value in the construction wouldn’t be read, and it would be spoofed as unvisited. The last stage of including hyperlink colour can be after the page had finished rendering (into non-display memory), so it will be more difficult to time. I’m unsure if by safe browsing mode you’re referring to non-public browsing mode or not, but if that is the case, we already do this.
This does decelerate the attacker, however the attacker can nonetheless get personal info from each click on. Let’s say a web web page shows N hyperlinks that every one say «Click here to proceed.» The unvisited hyperlinks are styled to blend in with the background so the person can’t see them. The visited links are visible due to the visited link styling, so the user only see the visited ones. Then the attacker can find out the place the consumer’s been by which link they click on on. Please, give customers back the flexibility to type visited hyperlinks’ text-decoration, opacity, cursor and the the rest of css-properties that we could harmlessly spoof. I don’t perceive that test fully, nevertheless it appears to contain accessing a knowledge construction concerning the page. I do not see why there could be a timing vulnerability involving the cache, but when there’s it could in all probability be compensated for.
Michael, Firefox three.6 is EOL , i.e. not even critical security holes will be mounted anymore. Yes, that is upsetting in your case of PowerPC Mac, however this bug isn’t the proper discussion board for that query. I do not have the time now to work on this extra, however you can fork my code above to check this text-decoration problem.
Are you positive that you simply had actually entered the non-public browsing mode? If you had, your window title ought to have had «» at its end, however within the screenshot that you’ve got posted, that’s not the case. OK, then possibly we should not be involved about any cross-site information leaks … If a person distrusts a site, he’ll use personal shopping mode. 2) It would nonetheless be possible for an attacker to learn details about the person’s historical past at other sites primarily based on the place they click on and don’t click on. For instance, and attacker may have a huge link that claims «Click here» and solely customers with a certain historical past entry would see it and click it because it blends in with the background otherwise. 1) It would nonetheless be potential for an attacker to assemble a convincing phishing page that looks like Wells Fargo to a Wells Fargo buyer and Citibank to a Citibank buyer.