download unmht or an mht archive extension for Add-ons. Add extra features and styles to make SeaMonkey your own. On the go? , with MHT and Faithful Save 5.2.1 Requires Restart. by Christopher Ottley, Paolo Amadini. — Open web pages saved with or other browsers (MHT) — Save many tabs, video and audio reliably, in a single ZIP file (MAFF) — Return to the original site you saved a page from, and more! Add-on home page Version 5.2.1 Info Last Updated: Feb. 21, 2018 Released under Version 1.1. About this Add-on. This add-on is only compatible with Firefox Extended Support Release (ESR) until September 5, 2018. The ability to save web pages as MAFF or MHTML is disabled by default in Firefox. While this functionality can be enabled again from the options, the Save Page WE add-on can also be installed alongside the Mozilla Archive Format add-on to save complete web pages in a single HTML file. Pages saved in this way will be compatible with future versions of Firefox. More details can be found on the official website. After September 5, 2018, most installations of Firefox ESR will be updated automatically to a new version that does not support the Mozilla Archive Format add-on, and it will not be possible to open or save MAFF and MHT files anymore. Developer’s Comments. • In order to open MHTML files when the IE Tab extension is installed, the filter /^file:\/\/\/.*\.(mht|)$/ must be disabled from the IE Tab options. • When saving a page in an archive fails, retrying the download from the Downloads window does not achieve the expected result. • Opening very long documents contained inside MHTML files may cause the browser to stop responding temporarily. Check out the latest development version for updates on new features and resolved issues. Version Information. Version 5.2.1 Released Feb. 21, 2018 424.9 KiB Works with Firefox 52.0 - 56.*, SeaMonkey 2.46 - 2.46.* The commands to save web pages as MAFF or MHTML are now disabled by default, and additional information on compatibility and conversion is displayed when updating from previous versions. The save commands can be enabled again from the options of the add-on, keeping in mind that current versions of Firefox and future versions of Firefox ESR will not be able to open the pages saved in this way. Working at University of New Mexico - Hospital. Many companies, including UNM Hospital, have been affected by online employment scams targeting job seekers for payment and personal information. We will never request money or sensitive information during the application process. If asked, assume that individual is not affiliated with UNM Hospital and ignore the communication. If selected for a position, we will ask for additional information. 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As part of our interdisciplinary team, you’ll advance the science of movement and the art of function. Emergency Trauma Center. Working in the state’s only Level I Trauma Center you’ll be part of a close-knit team of caregivers. Featured Career Area Nursing. Our nurses have access to state-of-the-art technology and the opportunities that come with being a teaching hospital. Learn more about the path you can take as a nurse at UNM Hospital. Download unmht or an mht archive extension for firefox. I have Windows 10 and FF 50.1.0 on my computer and want to have Outlook 2016 open in FF instead of IE. FF has been set as my default browser for quite some time but Outlook always goes to IE. I read on one site that it as to do with mht files but have no idea how to change things or what to download. I had it set at one time but I think I deleted or changed something and have no clue what it was. Chosen solution. I forgot to say they Firefox has been set as the default for a year without any problems. I did figure it out though. FF had to be able to read mht files so you have to download an extension such as unmht or an mht archive extension. I didn't change any options or settings in the extensions. AFTER you have the extensions in place, go to your Windows 10 settings and pull up default app settings. Look for an option to assign default apps associated with specific file types. Click on it and scroll down to mht files. Mine had 2 different mht files and to the right of each was a button that showed the IE icon. Double click on that and select FF as your default for BOTH types of mht files listed. After that, you should be all set. As a precaution, I would recommend creating a restore point before you start changing the Windows 10 settings in case something goes wrong or you tweak the wrong thing but have no clue as to what it was. I've done that so many times I've lost count!! 8. All Replies (5) Top 10 Contributor. Open Outlook settings and see if there is a default browser setting. Top 10 Contributor. Windows 10 has proven more difficult than other operating systems. If the steps in the following article don't help, I'm not sure what to suggest next: How to change your default browser in Windows 10. Chosen Solution. I forgot to say they Firefox has been set as the default for a year without any problems. I did figure it out though. FF had to be able to read mht files so you have to download an extension such as unmht or an mht archive extension. I didn't change any options or settings in the extensions. AFTER you have the extensions in place, go to your Windows 10 settings and pull up default app settings. Look for an option to assign default apps associated with specific file types. Click on it and scroll down to mht files. Mine had 2 different mht files and to the right of each was a button that showed the IE icon. Double click on that and select FF as your default for BOTH types of mht files listed. After that, you should be all set. As a precaution, I would recommend creating a restore point before you start changing the Windows 10 settings in case something goes wrong or you tweak the wrong thing but have no clue as to what it was. I've done that so many times I've lost count!! 8. Download unmht or an mht archive extension for firefox. I allowed Firefox to update itself to 51.0.1 (32-bit). I got a message telling me "multi-process is only partially supported by this version of the Mozilla Archive Format add-on" and I should disable multi-process to create new .mht archives. In fact things are worse than that, I cannot now read existing .mht files including one I created yesterday (nor others i created some time ago, it is a total failure: nothing happens if I try to open an .mht file). I now want to disable multi-process as instructed but the message did not tell me how I might do this. Searching Help does not help - various entries tell me that "restarting Firefox will restart in single process mode", but that is UNTRUE at 51.0.1. I now want to revert Firefox to the previous version, which allowed me to create and read .mht files, but I discover that Firefox does not create System Restore points :( :( However I found I did have one I created myself, so I reverted to 50.1.0 (50.1.0.6186) and all is well again. For the moment. I would like to be able to accept the next update, but need to know how to use it with .mht files, I have a lot of them. Chosen solution. This is a critical bug in version 4.0.1 of the Mozilla Archive Format add-on, that I'm currently maintaining. Thanks to a rapid response from Add- on Reviewers, an automatic update to version 4.0.2 is already available to solve the issue . The root cause was in the way the add-on declared its incompatibility with multi-process Firefox. As of today, multi-process is only available to general Firefox users if none of the add-ons they installed declare themselves as incompatible. The method that add-on authors should use to declare incompatibility has changed in Firefox 51, hence the bug. This change was previously undocumented, except as an aside in an internal wiki page relating to the controlled rollout of the multi-process architecture. After confirming that the new method resolved the issue, I have updated the developer-facing documentation here: While add-on developers have been receiving newsletters about the conversion to multi-process architecture since August 2015 at least, I didn't receive a notice of this particular change planned for January 2017. Unfortunately, the nature of this issue meant it could only be detected after the Firefox update. For clarity, the message "multi-process is only partially supported by this version of the Mozilla Archive Format add-on" is only intended for users on pre-release channels. At the current stage of rollout, users on the Release channel with one or more incompatible add-ons should have multi- process disabled automatically, without even noticing. While I'm here, I'll mention that full multi-process compatibility is definitely part of the future plans of the Mozilla Archive Format add-on . There is a clear technical path forward, although it takes a very long time to implement. Longer term, I would like for users of the UnMHT and Mozilla Archive Format add-ons to be able to continue to have an integrated user experience for viewing and saving MHTML and MAFF archives. However, I'm not sure about the technical feasibility of doing that using a WebExtension that is not marked as "experimental". If plans for supporting WebExtensions exclusively in the long term continue, the likely consequences may range from a slightly degraded user experience to a complete loss of support. There might be a way of keeping the current experience on pre-release channels, but most users won't benefit from them. On the upside, if feasibility is confirmed, it might be easier to convert the code base to support MAFF in other major browsers other than Firefox. If none of the major browsers will allow the MAFF file format to be integrated seamlessly, I will ensure that a clear path forward towards other formats exists through the "Saved Pages Conversion Wizard" currently provided by the Mozilla Archive Format add-on. All Replies (9) Moderator. There are two extensions that "do" MHT files. ://addons.mozilla.org/en-US/firefox/addon/mozilla-archive-format/ and https://addons.mozilla.org/en-US/firefox/addon/unmht/ UnMHT 8.3.0 does state that there was a "fix" made for Firefox 51 as far as an API change made in Firefox 51. So I assume that MAF is affected by that API change made for Firefox 51. But at the bottom of "About this Add-on" it does state that UnMHT is not compatible with e10s. . I installed UnMHT in Firefox 51.0.1 [to test it for you] - it works to save an MHT file and will read already created MHT files that were saved in the past , but Firefox automatically disabled "Multiprocess Windows = 0/1 (Disabled by add-ons) upon restart after installation; as expected, given the "not compatible with e10s" message at AMO. Bottom line is that both MHT extensions need updating for "compatibility", or a complete rewrite to WebExtension configuration, or they'll be "gone / unsuable" by the end of this year. My guess is that UnMHT stands a better "chance of surviving" than MAF. MAF Feedback page: http://maf.mozdev.org/feedback.html - the email link seems ro be disabled and the "Report bug or feature request" lionk goes nowhere, leaving me to assume tat developer has lost interest in continuing with MAF. Where with UnMHT there is recent activity in their support forum. http://www.unmht.org/forum/en/ Top 10 Contributor Moderator. You can disable multi-process tabs in Firefox by setting the related prefs to false on the about:config page. browser.tabs.remote.autostart = false browser.tabs.remote.autostart.2 = false. Thank you both for very quick responses. I am now busy on other stuff for a couple of days, will probably try out one of them after that (since i do want to upgrade from 50.1). Meanwhile I have looked at MAF since that is the add-on I have been using. I *may* have managed to send an email to their developer, but in any case their page at http://maf.mozdev.org/installation.html is fairly encouraging, it does appear that there is work under way for multi-process and their beta version already offers the partial support claimed in the message I saw. cor-el, thank you for the ghacks.net URL which does seem to be useful information. (Of course I did not notice it when it first came out because I just use firefox as a tool, I don't normally spend time on understanding its development path. Seems as though I might have to.) Moderator. The "Beta version" Install button on that page would download the 4.0.1rc beta version. The rc is for Release Candidate. Same as what is listed here - https://addons.mozilla.org/en-US/firefox/addon/mozilla-archive-format/versions/beta - which is dated June 11, 2016, which is the same day as the 4.0.1 release version date. The Development Channel has had no activity after that date. Hopefully the developer will respond to your email and have good news for you. Mozilla: shame on you for releasing a half baked v51.0.1. If you had mentioned the inability to read mht files in the popup after install I would not have wasted an hour trying to fix the problem. Better, since you obviously knew about it, had you detected my OS, extensions, etc. and disabled browser tabs as needed. Even more professional if you waited to release a working version. Modified January 28, 2017 at 7:46:08 AM PST by PeterJN. Moderator. Sorry that you are unhappy, but switching to the UnMHT extension might solve your current issue. MHT / MHTML - https://en.wikipedia.org/wiki/MHTML - was never supported in Firefox. MHTML is a proposed open standard, was never made an official standard; and as such Mozilla has never supported it. It's only been available in Firefox via an add-on / extension. As such, Mozilla has no responsibility to make sure API changes don't break things. An as far as warning users upon installing an update, with 10's of thousands (or over 100,000) extensions created over the years, there is no way for the Firefox developers to keep track of which extensions are using specific API's to extend Firefox features. As I pointed out, the developer of UnMHT planned ahead and made the necessary changes to his extension back in November 2016 - far in advance of Firefox 51 being released. MAF still needs to be fixed. Maybe the developer of MAF doesn't get the newsletter that Mozilla sends to registered / enrolled add-on developers months in advance of changes like this being Released, to give the developer a generous amount of time to "fix" their add-on and not cause their users problems like yours. Chosen Solution. This is a critical bug in version 4.0.1 of the Mozilla Archive Format add-on, that I'm currently maintaining. Thanks to a rapid response from Add- on Reviewers, an automatic update to version 4.0.2 is already available to solve the issue . The root cause was in the way the add-on declared its incompatibility with multi-process Firefox. As of today, multi-process is only available to general Firefox users if none of the add-ons they installed declare themselves as incompatible. The method that add-on authors should use to declare incompatibility has changed in Firefox 51, hence the bug. This change was previously undocumented, except as an aside in an internal wiki page relating to the controlled rollout of the multi-process architecture. After confirming that the new method resolved the issue, I have updated the developer-facing documentation here: While add-on developers have been receiving newsletters about the conversion to multi-process architecture since August 2015 at least, I didn't receive a notice of this particular change planned for January 2017. Unfortunately, the nature of this issue meant it could only be detected after the Firefox update. For clarity, the message "multi-process is only partially supported by this version of the Mozilla Archive Format add-on" is only intended for users on pre-release channels. At the current stage of rollout, users on the Release channel with one or more incompatible add-ons should have multi- process disabled automatically, without even noticing. While I'm here, I'll mention that full multi-process compatibility is definitely part of the future plans of the Mozilla Archive Format add-on . There is a clear technical path forward, although it takes a very long time to implement. Longer term, I would like for users of the UnMHT and Mozilla Archive Format add-ons to be able to continue to have an integrated user experience for viewing and saving MHTML and MAFF archives. However, I'm not sure about the technical feasibility of doing that using a WebExtension that is not marked as "experimental". If plans for supporting WebExtensions exclusively in the long term continue, the likely consequences may range from a slightly degraded user experience to a complete loss of support. There might be a way of keeping the current experience on pre-release channels, but most users won't benefit from them. On the upside, if feasibility is confirmed, it might be easier to convert the code base to support MAFF in other major browsers other than Firefox. If none of the major browsers will allow the MAFF file format to be integrated seamlessly, I will ensure that a clear path forward towards other formats exists through the "Saved Pages Conversion Wizard" currently provided by the Mozilla Archive Format add-on. Download unmht or an mht archive extension for firefox. Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option. What's a good replacement for unMHT. 2 replies 3 have this problem 641 views Last reply by Ray. unMHT stopped working. This was a very helpful add on. WHAT'S THE DEAL ? Firefox is version 39. Do I need to roll back to an older version ? :-( Very unhappy. Chosen solution. About this Add-on NOTE: Ver.7.3.0.5 isn't compatible with Firefox 39 or later. Ver.8.0.0 is waiting for getting review. At the bottom of that page, the Development Channel version is working fine for me in Firefox 39.0 - Version 8.0.0a19 - should work on Release versions until Firefox 41 or whenever "signing" for add-ons is enforced . All Replies (2) Moderator. Chosen Solution. About this Add-on NOTE: Ver.7.3.0.5 isn't compatible with Firefox 39 or later. Ver.8.0.0 is waiting for getting review. At the bottom of that page, the Development Channel version is working fine for me in Firefox 39.0 - Version 8.0.0a19 - should work on Release versions until Firefox 41 or whenever "signing" for add-ons is enforced .