grid-auto-columns: inherit;

 grid-auto-rows: inherit;

 grid-auto-flow: inherit;

 grid-column-gap: inherit;

 grid-row-gap: inherit;

 grid-template-areas: inherit;

 grid-template-columns: inherit;

 grid-template-rows: inherit;

Yesterday Thunderbird stopped receiving emails, but I am still able to send emails. When I try to receive emails, I get a series of error messages. These are listed in the order I receive them, from first to last: Could not read chrome manifest 'file:///C:/Program%20Files/Mozilla%20Thunderbird/chrome.manifest'. Could not read chrome manifest 'jar:file:///C:/Program%20Files/Mozilla%20Thunderbird/extensions/%7B972ce4c6-7e08-4474-a285-3208198ce6fd%7D.xpi!/chrome.manifest'. While creating services from category 'profile-after-change', could not create service for entry 'Sapi Speech Synth', contract ID '@mozilla.org/synthsapi;1' Timestamp: 8/28/2016 6:36:56 PM Warning: Unknown property 'grid-auto-columns'. Declaration dropped. Source File: resource://gre-resources/ua.css Line: 175, Column: 19 Source Code: grid-auto-columns: inherit; Timestamp: 8/28/2016 6:36:56 PM Warning: Unknown property 'grid-auto-rows'. Declaration dropped. Source File: resource://gre-resources/ua.css Line: 176, Column: 16 Source Code: grid-auto-rows: inherit; Timestamp: 8/28/2016 6:36:56 PM Warning: Unknown property 'grid-auto-flow'. Declaration dropped. Source File: resource://gre-resources/ua.css Line: 177, Column: 16 Source Code: grid-auto-flow: inherit; Timestamp: 8/28/2016 6:36:56 PM Warning: Unknown property 'grid-column-gap'. Declaration dropped. Source File: resource://gre-resources/ua.css Line: 178, Column: 17 Source Code: grid-column-gap: inherit; Timestamp: 8/28/2016 6:36:56 PM Warning: Unknown property 'grid-row-gap'. Declaration dropped. Source File: resource://gre-resources/ua.css Line: 179, Column: 14 Source Code: grid-row-gap: inherit; Timestamp: 8/28/2016 6:36:56 PM Warning: Unknown property 'grid-template-areas'. Declaration dropped. Source File: resource://gre-resources/ua.css Line: 180, Column: 21 Source Code: grid-template-areas: inherit; Timestamp: 8/28/2016 6:36:56 PM Warning: Unknown property 'grid-template-columns'. Declaration dropped. Source File: resource://gre-resources/ua.css Line: 181, Column: 23 Source Code: grid-template-columns: inherit; Timestamp: 8/28/2016 6:36:56 PM Warning: Unknown property 'grid-template-rows'. Declaration dropped. Source File: resource://gre-resources/ua.css Line: 182, Column: 20 Source Code: grid-template-rows: inherit; Timestamp: 8/28/2016 6:36:58 PM Warning: Expected media feature name but found '-webkit-min-device-pixel-ratio'. Source File: https://www.mozilla.org/media/css/thunderbird-start-bundle.7611e90660bb.css Line: 1, Column: 6442 Source Code: /*! updated 2016-04-11 */@font-face{font-family:'Open Sans Light';font-weight:normal;font-style:normal;src:url(/media/fonts/opensans-light.eot);src:url(/media/fonts/opensans-light.eot?#iefix) format('embedded-opentype'),url(/media/fonts/opensans-light.woff2) format('woff2'),url(/media/fonts/opensans-light.woff) format('woff'),url(/media/fonts/opensans-light.ttf) format('truetype')}@font-face{font-family:'Open Sans Light';font-weight:bold;font-style:normal;src:url(/media/fonts/opensans-semibold.eot);src:url(/media/fonts/opensans-semibold.eot?#iefix) format('embedded-opentype'),url(/media/fonts/opensans-semibold.woff2) format('woff2'),url(/media/fonts/opensans-semibold.woff) format('woff'),url(/media/fonts/opensans-semibold.ttf) format('truetype')}@font-face{font-family:'Open Sans Light';font-weight:normal;font-style:italic;src:url(/media/fonts/opensans-lightitalic.eot);src:url(/media/fonts/opensans-lightitalic.eot?#iefix) format('embedded-opentype'),url(/media/fonts/opensans-lightitalic.woff2) format('woff2'),url(/media/fonts/opensans-lightitalic.woff) format('woff'),url(/media/fonts/opensans-lightitalic.ttf) format('truetype')}@font-face{font-family:'Open Sans';font-weight:normal;font-style:normal;src:url(/media/fonts/opensans-regular.eot);src:url(/media/fonts/opensans-regular.eot?#iefix) format('embedded-opentype'),url(/media/fonts/opensans-regular.woff2) format('woff2'),url(/media/fonts/opensans-regular.woff) format('woff'),url(/media/fonts/opensans-regular.ttf) format('truetype')}@font-face{font-family:'Open Sans';font-weight:bold;font-style:normal;src:url(/media/fonts/opensans-bold.eot);src:url(/media/fonts/opensans-bold.eot?#iefix) format('embedded-opentype'),url(/media/fonts/opensans-bold.woff2) format('woff2'),url(/media/fonts/opensans-bold.woff) format('woff'),url(/media/fonts/opensans-bold.ttf) format('truetype')}@font-face{font-family:'Open Sans';font-weight:normal;font-style:italic;src:url(/media/fonts/opensans-italic.eot);src:url(/media/fonts/opensans-italic.eot?#iefix) format('embedded-opentype'),url(/media/fonts/opensans-italic.woff2) format('woff2'),url(/media/fonts/opensans-italic.woff) format('woff'),url(/media/fonts/opensans-italic.ttf) format('truetype')}html{color:#333;font-size:14px;line-height:1.5;font-family:'Open Sans',X-LocaleSpecific,sans-serif}body{margin:1.5rem;background:url(/media/img/sandstone/bg-gradient-sky.png) repeat-x,url(/media/img/sandstone/grain.png) repeat,#eee}a{color:#0096dd;text-decoration:none}a:hover,a:focus,a:active{color:#00539f;text-decoration:underline}h1,h2{margin:0;font-family:'Open Sans Light',X-LocaleSpecific-Light,'Open Sans',X-LocaleSpecific,sans-serif;font-weight:normal}main{position:relative;overflow:hidden}header,section,footer{box-sizing:padding-box;margin-top:1.5rem;padding:0 1.5rem}header h1,section h2.iconic{position:relative}header h1:before,section h2.iconic:before{display:block;position:absolute;top:0;background-repeat:no-repeat;content:''}header h1:before{background-image:url(/media/img/thunderbird/logos/release-100.png)}html[data-channel="earlybird"] header h1:before{background-image:url(/media/img/thunderbird/logos/earlybird-100.png)}html[data-channel="daily"] header h1:before{background-image:url(/media/img/thunderbird/logos/daily-100.png)}section h2.iconic:before{background-image:url(/media/img/thunderbird/start/sprite.png)}footer a{display:inline-block;-moz-padding-start:25px;padding-inline-start:25px}footer a:before{-moz-margin-start:-25px;margin-inline-start:-25px}footer a:before,section a.iconic:before{display:inline-block;-moz-margin-end:5px;margin-inline-end:5px;width:20px;height:20px;background-image:url(/media/img/thunderbird/start/sprite.png);background-repeat:no-repeat;vertical-align:text-bottom;content:''}header h1{box-sizing:padding-box;font-size:1.25rem;line-height:1}header h1:before{height:100px}header h1 span{display:block;color:#2666a6;font-size:3rem;letter-spacing:-0.06ex}section h2{font-size:1.25rem;line-height:1.3}section h2.iconic{display:table-cell;-moz-padding-start:55px;padding-inline-start:55px;height:50px;vertical-align:middle}section h2:before{width:50px;height:50px}section.tip h2:before{background-position:0 0}section.addons h2:before{background-position:-50px 0}section.help h2:before{background-position:0 -50px}section.blog h2:before{background-position:-50px -50px}section p{margin:.7em 0 0}section a[href$="Contributing"]:before{background-position:-40px -100px}section a.more:after{content:"\00A0\00BB";white-space:nowrap}footer ul{overflow:hidden;margin:0;padding:0;list-style-type:none}footer li{box-sizing:padding-box;padding-bottom:.5rem}footer a[href*="features"]:before{background-position:0 -100px}footer a[href*="blog"]:before{background-position:-20px -100px}footer a[href*="donate"]:before{background-position:-40px -100px}footer a[href*="Contributing"]:before{background-position:-40px -100px}footer a[href*="addons"]:before{background-position:-20px -120px}footer a[href*="support"]:before{background-position:-40px -120px}footer a[href*="how"]:before{background-position:0 -120px}[dir="ltr"] header h1:before,[dir="ltr"] section h2.iconic:before{left:0}[dir="rtl"] header h1:before,[dir="rtl"] section h2.iconic:before{right:0}@media(min-width:1024px){footer li{width:50%;min-width:10em}[lang|="en"] footer li{width:33%}}@media(min-width:800px) and (max-width:1023px){footer li{width:50%}}@media(min-width:800px){main>header,main>div,main>footer{width:50%}[dir="ltr"] main>header,[dir="ltr"] main>div:last-of-type,[dir="ltr"] main>footer,[dir="ltr"] main>footer li{float:left}[dir="ltr"] main>div:first-of-type{float:right}[dir="rtl"] main>header,[dir="rtl"] main>div:last-of-type,[dir="rtl"] main>footer,[dir="rtl"] main>footer li{float:right}[dir="rtl"] main>div:first-of-type{float:left}}@media(min-width:640px) and (max-width:799px){header,section{width:70%}footer{position:absolute;top:120px;width:30%}[dir="ltr"] footer{right:0}[dir="rtl"] footer{left:0}}@media(min-width:480px) and (max-width:639px){footer li{width:50%;min-width:10em}[lang|="en"] footer li{width:33%}[dir="ltr"] footer li{float:left}[dir="rtl"] footer li{float:right}}@media(min-width:480px){header h1{display:table-cell;-moz-padding-start:110px;padding-inline-start:110px;height:100px;vertical-align:middle}header h1:before{width:100px}}@media(max-width:479px){header h1{padding-top:110px;text-align:center}header h1:before{width:100%;background-position:center top}}@media(-webkit-min-device-pixel-ratio:1.5),(min-resolution:1.5dppx),(min-resolution:144dpi){header h1:before{background-image:url(/media/img/thunderbird/logos/release-200.png);background-size:100px 100px}html[data-channel="earlybird"] header h1:before{background-image:url(/media/img/thunderbird/logos/earlybird-200.png)}html[data-channel="daily"] header h1:before{background-image:url(/media/img/thunderbird/logos/daily-200.png)}} Timestamp: 8/28/2016 6:36:59 PM Error: An error occurred during a connection to pop.persico.net:110. Cannot communicate securely with peer: no common encryption algorithm(s). Error code: <a id="errorCode" title="SSL_ERROR_NO_CYPHER_OVERLAP">SSL_ERROR_NO_CYPHER_OVERLAP</a> I use Windows 10. I do not know where to start in troubleshooting and solving this issue. Can anyone help? Thank you. I also apologize if this has been posted several times. The question did not show up on my profile.