![]() When an HTTP request is made, it is matched against the ad block filter list. Communication blocking prohibits communication with ad servers. For instance, users may be able to whitelist certain ads or advertisers.Īd blockers typically filter two kinds of content. Some of this ad blocking software allows users to create their own rules to filter out some ads while allowing others. Much like the way that a good VPN is capable of filtering out your IP address so that it’s not visible to prying eyes, an ad blocker shuts out certain content on websites based on specific filtering rules. This means that you must choose an ad blocker carefully. ![]() Similarly, it may be helpful to know that some ad blocking software is only available on certain operating systems.Īd blockers that are appropriate for Windows aren’t necessarily compatible with Mac, and the same can be said for iOS and Android. ![]() However, some are more successful at this than others. Some ad blockers are independent programs while others are an extension of a browser or operating system.Īll ad blockers are designed to limit the number of advertisements that distract you online. An ad blocker is essentially software that prevents advertisements from popping up or automatically playing on your browser. c:/builds/tinderbox/Fx-Mozilla1.8-release/WINNT_5.2_Depend/mozilla/xpcom/build/pldhash.Like a reputable VPN, the best ad blockers are designed to help you preserve anonymity online. User CommentsĜhecking for updates in Firefox with Ad Muncher loaded Operating System Windows NT 5.0 build 2195 Stack Signature PL_DHashTableOperate 8581f7b4 this is rare and we really appreciate it. Reporter: thank you very much for including the relevant application in your filing. If there is any more information I can provide, or if anyone can suggest a change to Ad Muncher's patching behavior that might better work with Firefox, please let me know. I traced through Ad Muncher's patches and all patch functions and winsock APIs completed without fault, the error occurs after returning to Firefox code. Starting Ad Muncher after this connection is made avoids the problem, and modifying Ad Muncher not to redirect loopback connections also prevented the problem (but we would prefer not to use this as a long-term fix). The original peer is returned, and the original local name.įrom my analysis so far it looks like the problem only occurs if Ad Muncher redirects the connection Firefox makes to a local address on startup. "getpeername" and "getsockname" are patched to improve transparency of the system. Ad Muncher then connects out to the original target and relays information, with filtering, between the two connections. "connect" is patched in order to change the connection target from the original to a localhost address, which the Ad Muncher program is listening on. "WSAStartup" is patched purely for startup purposes, and no parameters or return values are altered. Using Firefox 2.0b1 I generated talkback ID TB20936818H when attempting to check for updates from within Firefox.Īd Muncher's filtering works by doing in-memory patching of the "WSAStartup", "connect", "getpeername" and "getsockname" functions in wsock32.dll or ws2_32.dll (with preference for the latter if present). Firstly thank you very much for your help with this issue. ![]() I am the lead developer of Ad Muncher, Murray Hurps. I don't know if this will be useful but I'm attaching Dr Watson log of one of such crashes. I don't think it's Ad Muncher's issue, because it works OK in some previous trunks (unfortunately I can't give any approximate regression window - I haven't been regular trunk user since February, but I'm sure that it worked OK in selected builds from previous months.).įirefox crashes, Talkback kicks in, but it doesn't work on my PC (doesn't send anything to the server so I can't give you any IDs). When Ad Muncher is not running - everything is OK. This one of the last non-Places trunk builds, I've recently wanted to switch to current trunk builds and that's how I discovered this crash. ![]() Crashes don't occur in the following build: User-Agent: Mozilla/5.0 (Windows U Windows NT 5.2 en-US rv:1.9a1) Gecko/20060228 Firefox/1.6a1īuild Identifier: Mozilla/5.0 (Windows U Windows NT 5.2 en-US rv:1.9a1) Gecko/20060624 Minefield/3.0a1Īd Muncher ( ) is a small ad-blocking application which simply acts as a proxy for HTTP(S) traffic. ![]()
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